Needs more effort
Well,
This is pretty bad. Since it's your first animation, i'm giving you some tips:
- Don't make a loop of approx. 10 seconds and loop that a couple of times.
- The character becoming bigger 2 times when he is outside is just strange, fix it. I you want you animation to tell he has te grow up, at least let him get big one time. Nw it's just strange.
- Also, your graphics aren't very good either. If you want that style, you could at least polish it much more. But in my opinion, this is just a lazy style so you don't have to animate more.
I don't want to discourage you or anything, you just need a lot of practice and time to make good animations. Next time, put some more effort and time in it, and i'm sure it will get better ;)