Robin 0w0

2. Shading Errors Some spots on your OC have NOT been shaded. The parts are; the hair underneath the hat (even if the hat is TIGHT, there will still be a light shadow from the overlap of the hat on the hair), The crotch (the light source seems to be facing downwards, which means the OC's crotch area, underneath the arms, and neck should be lightly shaded), The eyes (You should always have a VERY LIGHT ---or darker shades [it really depends on the art style] shadow underneath the eyelids, since the light source CANNOT reach underneath the area where the eyelids are. How to solve incorrect shading; Make sure you know where the light source is coming from, continue to shade at the OPPOSITE direction of the light source. Practice shading on different shapes, in different positions with the light source, and just keep practicing!

3. The solidness of the clothes Your OC also has solid clothing. The shorts are obviously loose, so they must flow smoothly, with overlaps as well. Try to make the clothes have more wrinkles (It'll just make your art look more professional. How to fix the issue; Just practice creating sweater, shorts, pants, etc... And you'll get in the hang of it! You may also use references from in real life to draw the wrinkles in whatever clothes your OC has on. :)

Well, that's the end of my critique :3 It was fun! Mostly because this OC is very creatively made. If you ever have any questions about anything, feel free to comment on one of my latest anims and I'll be sure to respond!