cool uniform, did you make the texture yourself? I tried a couple of ways to make camoflage print before but it didn't feel the same.
cool monster, are they wearing an ultratight suit as I'm wondering if the lines are textured skin or not. if so it might need a bit more render lines all over rather than just at edgees and boundaries as that can seem more like tight fabric, maybe.
love the shoes and hat on that sofa one, and the poncho thing is a slightly more realistic render than you normally do for clothing. is that a style shift, you trying out a new method?
and the last one, well looks good so far. I always default to a standard lighting position and level. well done for changing it up a bit :P
the shading on the neck is a bit off perhaps where it meets her right colarbone? also I think the bright highlights look great, but they seem to conflict with the shading of the rest of the body, perhaps more shade on her left or more highlights on her right, such as on the breasts/tummy/left leg, might work well. although you explained why you don't before, I think you would gain a bit more depth with stronger shades, especially in deep crevices, such as the underarm and cleavage.