Rock on!
Improvements:
- The guitar body and head is too small (the place where you tune the strings).
- Same with the hands and arms, the pants are a bit too poofy but I like the overall finish.
- You'll need to add some creases (folds) in the clothing.
- Good expression for a starters but you'll need to give it a determined to learn facial to make it better.
- And deffinately more shading.
Not too bad for starters. Keep working on it :D