Wow! Really nice! Except, there's no lamp. =[
Something that you should fix is the shading of his pants. It looks a bit pillowshaded, maybe add some more deatils in it. =] Other than that, looks really good!
Look a tad bit too pillow-shade-y. I'd also up the contrast between some of the colors.
Cute lil piece. I like the vibe the old guy gives off.
Thank you very much for the feedback, I'll work to improve for sure!