It's part of a larger project, so... expect more to come. At first I wasn't happy with the way the lines came out after scanning, so I had to come up with a shading style that'd match it. I was going to add some Wind Waker-style noise too, but in the end I liked the way the block colours looked.
Indeed... I redrew his whole... mouth area several times, and it still looks wrong. Still, good practice. ;D
I've done a few more sketches this morning, and I'm seeing where I was going wrong... It didn't help that I was using the Mario Hoops art as reference. The pose doesn't really let you see his proportions properly.