Guy With Guitar (perspective)

Today we are going a completely different direction from tomatoes.  This is obviously a guy playing guitar, but I wanted to work on both drawing hands and on perspective.  When I stumbled upon this picture, I couldn't resist.

I really wish that the picture wasn't all blue and grey.  maybe I should repaint and use a red shirt or something.  Despite the way the left hand looks, I'm really proud of bing able to draw the hands as well as I did.  I think the main problem with the hand is not that it isn't drawn well, bu that the paint looks a little odd.  If you look at the hand again, you will see the fingers are formed well and in proportion.  Its just a little running I got from the pain that makes it look a little odd.

The left shoulder is supposed to be way in front of the right one.  I definately think I got the size of his arms right, but there is something not right about the way it looks.  It looks like this guy is sitting square to the viewer.  Well, I'll just keep at it, and I'll get it some day.

I tried hard to leave extra white in this picture.  I could easily have made his shirt a solid color, and it might have worked out ok.  But leaving the white gives a sense of highlights.

I am toying with the idea of putting guitar strings on this,  what do you think?