Work on the pacing and get some background music.
Out of 1 and 2 which the pacing just made me bored.
The humor is kind of dry cept that t-shirt joke.
Now to 3 where the artwork has obviously improved.(10)
The humor has hit a 10 i actually laughed quite a bit.
However you still have work to do before i can consider these as great as they could be. You need to work on your pacing, You have a very slooooooooow pacing and good jokes are to far apart. This leads to a very slow and more harshly put "Boring" video. You have good idea and good humor. Your characters are great. More jokes, faster pace, and get yourself some background music to help fill in the slow moments where you want more storyline. This would help your videos so much. I have hope for you becoming one of my new newgrounds heroes. Just work on it!
Overall an 8.
But you could make it so much more.