Storytelling skills need improvement
You are a ridiculously talented artist and animator, but there was so many little annoying things that distracted me from the actual story itself.
That first background outside the house with the cute little cars was awesome, after seeing that I was focusing on more backgrounds, but almost straight away they weren't half as good as that opening.
That was super distracting.
Also, I feel like the color of the main characters are a little bit dull, like just A TAD gray.
The voices (I'm sorry) are horribly unlikable. Especially the kid with the hat, he's such an annoying character, just from the way he talks.
Also the pacing of the conversation is really slow, there's mad pauses every time they speak.
The thing that annoyed me most was how you edited the music. You had it fade out for when Neenja was putting on his gear. I felt it would have been way more epic, if it just started abruptly with no fade in and the camera just started on his eyes or something.
Also sound was a major issue. The mic quality is decent, but maybe learn to add reverb, when they're standing in an open street it still sounds like your speaking in a small room.
Some minor sound effects were kinda shabby too, like when the massive guy bursts through the wall, it felt half assed and really weak. The sound going out of sync ruined the whole experience too.
You have a great concept for a great series, I just don't wanna see you ruin it due to little things that can be easily fixed.
Good luck!