a (heavy) photomanip based on this stock

if you check the original stock, i was mostly working on lighting. face seems lit by dappled light, while shoulder seems to say intense light. hair is a mystery to me but i tried. any suggestions or reference photos?
also suggestions about making the shoulder/back look less cg would be great smile
also

yes, lazy glow layers that look dramatic but require very little skill, haha. composition is a real problem for me. i was trying to copy someone else's general compositional style, not sure if i succeeded. how to improve this? in order to draw this successfully i had to make pencil/paper composition thumbnails first. i would have gotten stuck otherwise.