A wall of text, but my time for your best interests.
I don't really know you so this might seem harsh, but what has to be said has to be said. The rating I gave you is so low because I expect more from you, and while this may be acceptable it is not your full potential. I am a bit of a story teller, a bit of a voice actor, and a bit of a director. I've had a little bit of experience in every role, and I can see the mistakes on multiple levels that are making this series with great potential, struggle to find coherence. This series has it pros, but I won't go over them. I believe the previous reviews have covered the pros well. However, I have to point out some major issues that should and need to be addressed.
My first and foremost issue with the series is the storyline. There are 43 episodes of this series and it appears to have made it a long way. I have watched the previous episode but for every episode I watch the story becomes more convoluted and unclear. Perhaps I should watch the other 41 episodes I haven't yet? Well the problem I'm picking on isn't the fact I can't tell what's happening in the overall world and series, but I can't tell what's happening within the episode. The story moves quickly from scene to scene and characters are making appearances rapidly on and off the spotlight of attention so fast that it can be rather hard for a person to keep track of who is who, what is what, and who is trying to do what.
Why? Well the story is relying heavily on telling and not showing. It's a rule of the narrative that you, "show don't tell." Your story is so heavy in dialogue and character actions are limited to either gags or the visualization that a character is walking somewhere. You story needs to slow down and show us what is happening. For instance when Rachel arrives at the Colosseum rather than showing the viewer that she arrives, you use the dialogue, "So this is the place, the Colosseum," or something to that effect. Action is worth a thousand words, and it truly shows who your characters are. The scene lacks any action (in the sense of characters reacting to their environment and adapting to continue to achieve their goals with something other than words, and not the Michael Bay stuff) So then we quickly jump to when she finds the person she is looking for in the Colosseum. This brings me to my next point. The story has a major lack of continuity within an episode. The perception of time is lost, and I can't tell if a day has passed if it a whole year has gone by. Usually shots, actions, and things of this nature follow a continuous action and only cut out some minor things like the extra 50 steps to get across the courtyard. However in this animation we follow multiple characters that are striving, or working towards different goals and in this the multiple shots that are used to depict this make me loose my sense of time. Normally a shot that follows another immediately has a "repeating action" and jump cuts usually depict small jumps in time that are cut out because they are extraneous actions, the extra 50 steps in the courtyard I previously mentioned. In the series it appears you have the need to cut out loads in story time to keep the stuff interesting. You should fight your story to fit all of the good content in, a story that is easy to write is usually a story that is worth telling. A good story comes naturally, if a story fights you every step of the way, then you need to stop and evaluate.
My next point in the review is the dialogue itself and the characters you are representing. In your story you rely heavily on your dialogue like I have previously said. A majority of your characters share the same voice actor that, while he may make some minor variations in the voice, sound rather the same. When this is added to the fact that the characters have relatively the same designs, with the exception of shirt designs, that are just about ignored when a character is talking. Their similar faces (the place that I at least tend to look at when a character talks) and similar voices, and similar characteristics make the characters really hard to tell apart. Now lets just add in the continuity issues that cause characters to jump from one part of the screen to another and we got a lot of confusion. Now I did notice you have taken some steps from the previous episode to correct this. I did notice that you added artistunknown's voices to some of the other characters and it made for some better variety and for some different characters. But your majority is still being voiced by one man, and I am not trying to be rude, but your primary voice actor lacks the emotional commitment to his character. So the characters end in a bland feeling when if they had some intonation we could give these similar characters some original defining characteristics.
SO I'll end my rather extended... rage with some proposed solutions. When it comes to writing a story writers have different methods. George R. R. Martin has said there are to two types of writers. The architect, who lays out the every room, every board, and every outlet before he drives a single nail. Then there is the gardener who digs a holes and plants a seed and waters it. He has some shape but a lot depends on the wind and the weather, and how much blood he gives to his plant... No one is purely one or the other, and I myself tend to flow from one side to the other. I tend to lay on the architect side. I plan the whole series before the first episode is done. Sure, I may write the basis of an episode, prior to the plan, but I always stop and figure out where I'm ending and the best way to get there. I like to plan how much time to dedicate to every issue, and this way I don't need to worry about cutting out massive amounts of story time. Ever since that started planning my story, it has made writing SO much easier and the stories SO much better. I am by no means perfect, but by planning out things before you lay your pen to the tablet can mean the difference between good, and gold. Voice actor wise, your current actors need emotion, and you need more variation in the voices. Perhaps try recruiting more voice actors. Why, for the sake of your series I would even voice act for you just to help out a fellow creator. Once your voice actors get a little more emotion, and more variety they can transform the characters. I don't know about you, but when I see a character evolve and live it puts a smile on my face.
In the end, you are the director. You make the decisions, you're the final say. While you may listen to other peoples opinions, and it is a directors job to take input and make sure that their crew/cast feel like they have their part and stake in the success of the video/animation/movie and are appreciated; YOU MistyEntertainment are the director, and this is your child. The final decision is yours.
I thank you for your time,