Hi Chris, I like how your Sonya has improved ! Congratulation for your work

I don't have the same great eyes as uKER but here are some things I've noticed:
-As noticed previously, the shoulders lacks some volume and the biceps should be slightly thinner.
-The fist needs some works (the heads of metacarpus should not be on the same line, it should be a curve)
-The socks are slightly too high.
-Her waist a slightly (very slightly) thinner.
-The belt and the thong brief needs some tweeks too:
1)The belt is larger, more skin tight and should ends at a lower level on the hips. It's a sash belt, so it needs more relief (fold, pleats) and needs to be more shiny (more than the brief itsel)
2)The thong brief should be slightly more "high cut" (the brief sides should be hidden under the belt) and the front should be slightly less large.
-The end of her hairs is maybe too much curved (not sure for this one)
-Finally, I think the clavicle and the neck relief should be more visible.
If you want some references for the attire (especialy the belt and the brief), you can take a look at this picture:
Sorry for my bad english but I hope it will help.