I’d recommend using a background, watermark, and making the character R15.The arm on the right ( in 1st picture ) looks twisted, and I can’t really tell what it’s doing.
Their left arm doesn’t look very healthy.
Yeah I noticed the arm as well, thought the extra angle would help but i guess not. I don’t think the rig I use supports r15. Will make a watermark though.
That arm, it scares me
I find that many GFX people make, the arms don’t look attached, especially the left arm. Looks good overall
you need better posing! also the arm is so weird, her elbow is literally bending backwards. 
and why so tilted! Add more better lighting, and have more bends in the legs
the left arm loks like its levitating in the air, too. 3.6/10
I don’t mind the pose that much. But the lighting is excruciatingly dark. Her face is very hard to see. I’d recommend adding some sort of sun to brighten up the front side of her.