They both look a little bit posed, but I really like the one on the left. it has great detail. The close-up is technically good. His expression looks a bit... forced, or maybe like you caught him between expressions. But the full length photo is really good.
OK, you asked for it... :) I really like the colors and the whole sepia (tritone? desaturation?) treatment as well as the palpable physicality of the model, which you captured well (the hands, the cheekbone, etc.). In fact, I like the whole thing except one detail: I can't decide if he is smiling or slightly jeering in the close-up and that is putting me off a bit.
You want to know my thougts? Ok - you know that i love colored pictures. You choose a great rusty tone - excellent, but a little bit to much .. juyt a little bit. But it works great - espeacily the right shoot is very very fine! Wanna see more .. please :D.
Thanks for the comments guys. The left photo looks a bit posed because it is. I don't think a portrait *needs* to be spontaneous. Some posing from time to time can give a cool result. :)
Now about the smile: I'm not sure but I don't think it's forced, but I'm going to ask him just to be sure. :)
Nicki, how the image looks on your screen is something I cannot control (I wish I could): it depends on your calibration, your color profile and your gamma settings. It could also be that the tone is just a little too much. :)
Anyway, thanks a lot people, I appreciate all your comments.