I know you wanted it big, but I don't know if you should have. Try changing the size and see how it looks.
Why didn't you brighten up your "Gummy Bear" one, the colors looked good on it just that it was kinda dark. Yes this one is simple, if thats what you're going for you did a good job , I'm not feeling the greenish color around the edges though, maybe yellow but go from a brighter(from center) to dark(the edges). I like the avy though.
Thats just me though, I don't hate it its good but just some opinions :3.
I'm trying the positive thing, let me know how I'm doing .