careful not to fall into the trap of creating what your brain thinks is correct. you've got some forms in here that are a little strange and it looks like you might not be using reference, or you're probalby going from a propotion sheet with little detial. i know it's tempting to think that the knee, for example, just comes out with a bump, but untill you acctualy get refference of a whole shit load of knees from every angle and figgure out how you're going to build one, then it won't look correct. there's a few parts of this model that speek to me that that's what you're doing. the whole knee area is thin, and he's got sausage legs. the knee section doesn't have that profile, nor that internal detial. here's a quick ref for the knee:
http://www.vfs.com/~3d45john/035.jpg
i'd suggest for every single area of the model (ribs, abs, knees, thighs, etc etc) you go out and get reference, and figgure out how you can model the area with a nice, clean mesh. i'd suggest modeling in quads, too, but since you're doing low poly.. what ever.
i know this sounds tedious man, but when i acctualy sat down and did this i got over my modeling platau. you'll find that if you sit down and really force yourself to understand human form and draw out lineflow over your reference, at a meticulating pace, then the next time you do it, you can whip it out a billion times faster. you'll also have a better sense for mass and proportion once you start matching reference. suffer once, then live in.. bliss, really. happy, loving.. wonderful.. bliss.
anyway, that's just my 2 cents. everyone learns differently, and this step might be later on down the learning process or not on it at all [img]/images/graemlins/smile.gif[/img] take it or leave it bro [img]/images/graemlins/wink.gif[/img]