I like the 3/4 rendering the best. The other two come off flat or off balanced, but trying to draw front and profile shots is hard (at least mine often come off worse). I think the problem with the front view is that the left arm (the one with all the wrist watches) is shorter than the right arm (the one with the nicotine patch). Oh, in the 3/4 view, the torn-pants leg seems way too thin. I would assume there'd be a bit more of a calf represented there.
Also, the boots seem a bit lacking as well. Not really sure how to fix it, maybe more detail, or just playing with it some more
But these are technical things. Overall, I like the design a lot. Keep drawing, share some newer ones with us.