i like it, but there is something i don't read well, that's the chest, it has the upper zone wrong or am i blind? also, the line in his back looks like its wrong...you should check that.
one more note: the lightsource isnt very well defined:
*shoes: allright, i like that shoes, ls is well from this point, you should shade it as that, since i think that is the best shaded thing ...of course, i am talking of the front side, cause in the back side...lightsource is turning with your pic?