I'd say you're off to a rather solid start. Although, your characters complexion/shading seems very soft (Not sure if this is what you're going for?), but in my opinion it could definantly use some fixing up. Along with that, it seems to lack a bit in contrast and shape readability, so I went ahead and did an edit on the character for you to show you what I mean, hopefully you can take a thing or two from my edit and apply it to yours..
