Does look like a very intimate and personal piece, though I wouldn't have known the theme was ptsd unless you mentioned it. The body form expresses something, but still the scenery is a serene contrast, not at all dark and dystopian as you'd imagine. If anything, I'd picture a sense of isolation, doubt, some form of despair... yet the room is bright and airy, and outside the window looms a mountain; the sky is blue and the ground is green. Wonder if there's symbolism there that I'm not catching,apart from body language? Though it doesn't really convey to me what it seems you're trying to, it looks good, delicate and dreamy, with a tint of despair.
-cd-