I'm sort of hesitant to completely clean up the outline because I intentionally varied its width to hint at shadows, so it might look flat once they're removed.
But I dunno 
You mean like this?
Using black as the shadow color really worked for The World Ends With You (game this screenshot was from), because the world of the game is obsessed with street fashion, hard rock, gorgeous celebrities, good ramen, and a popular Beyblades-esque game (hello, screenshot!). You wouldn't call the game "edgy," but the Shibuya the characters live in is all about being on the edge of everything. It shows in the art; all the character portraits have hard outlines that resemble the sharpness of
wildstyle, the main character likes the art of a specific graffiti artist more than anything else, and all the enemies have limbs that look like graffiti. So the hard black outlines work as shading. Your character, though, is cute, and is defined by its roundness. Sure, there are edges, but that's not the focus. The only times when I would say the black-outline-shading is helping you is when the feet are moving away from the viewer, and the right side of his hair where it goes behind his face. Aside from that, it's not really shading anything. Just try it and see if you like it.
[Edit] Is there a reason why making longer posts screws with the scrollbar for the textbox?
