Alright so hold on tight cause I ain't holdin' back! (Tough love)
Foreshortening
- First will talk about your female OC, the first initial hand was done fine besides the fact that it's a little too far right. It's kind of an anatomical error more than a foreshortening one. Secondly I'd like to talk about the hand behind her, frankly it's too big and it's really not helping out your composition foreshortening wise. It's canceling out the front hand and making the viewer think "oh she just has big hands". Instead of "Oh wow! it looks like the hand is coming right at me!" What I'm trying to say is make the Arm + Hand in the back proportionally smaller.
Now for the male, Theres a lot more anatomical errors in your male than your female preferably the front arm. It's a very uncomfortable looking pose and the foreshortening of the arm isn't in an angle that'd bring this piece into it's max potential.
(I'm going to post more when I get home I have a LOT more to say, In currently in school so I'll be back soon)