OP:Adorable Thief

Nice job, I like the color choices and the shading is a lovely touch, just as you continue as an artist, try to pay attention to your characters proportions and anatomy. If drawing characters using the bodies of real people as reference helps you (as it did for me) don't be afraid to experiment blending styles-- from realistic details, to even mix and matching different manga/anime artist's styles. And never stop watching One Piece---that's bad for the soul.