Oh wait when i said finer lines I meant cleaner lines, the outline of your character is a little messy, that's what I meant I apologize. Your welcome either way!
If you want a critique on your draw then I'm happy to give you some
Body proportions such as the head and tourso could be worked on and finer lines are needed. Also texture to the hair would make for a better draw too
The characters design is great and colors look good otherwise, keep practicing, your doing great