Really nice piece! I really like the character's design, and you did a great job with it! The colors and shapes are also quite spot on, and distinct!
My only critique would be to generally try to avoid having a lot of similar colors stacked on top of one another! I know that, that is quite a vague thing to say, so my best example of this would be at the characters tale.
If you look closely you can see that sometimes you have "bands" of color stacked on top of another. This can give short of gradient and blur effect which sometimes can create a lot of noise and can look a little off. This is something called "banding" and it is something too generally avoid!
Regardless, a great piece and a great character! You did a really good job with it!