Not going to lie or sugar coat shit man, your shit is wack. That being said believe me when I started using PS my shit was wack too, keep on practicing though you will get better. I spent a lot of time reading about PS and different effects, and techniques and I am still as not as good as I would like to be. PS is a life long learning thing, and the more you use it the better you will get at it so keep on experimenting. The render of the girl is actually pretty clean, but the blending is terrible and you need to work on making better backgrounds. It will all come in due time though.