There's too much going on- the main focus of the composition cannot be distinguished since elements are fighting with eachother= no harmony.
White element vs black element, both vertical vs green diagonal plant, my brain goes wha..huh !?!

You had a good idea with the back, why not take a photo of someones naked back and warp/ distort the clock on it, play around.
A Ranum chick usually does the trick IF she's not dating any recent / current entry.
But don't rely only on her - you need to do some work as well. Here's a nice back, her name's Candace Nirvana ( wow ):
http://mjranum-stock.deviantart.com/gallery/1854062?offset=24#/d1ae7k1

What do you mean Ranum chick? Thanks for the link, I will look into it. Last time I took something from Deviant art, I got taken out bc it was copywrighted. I am taking in what you said since this is my first stab into the surreal.

Oh, Ranum chick = female model posing for Marcus J. Ranum - brilliant man, kudos to him.
On deviant whatever user has "stock" in his name, provides his images free to use- but you have to credit him, so read his terms of use. Some ask link with the work or to be informed by mail, etc.
The link i gave you is usable since is mjranum-STOCK.

Thanks Grey M that is very useful information! I have to work today, but I will see if I can do that tip. Again thanks.

Ranum' stuff is amazing......

Grey, with the last breath of my body I joing deviantart and I fixed it. Full credit to Ranim for his incredible pictures and the models too. By the way his art is incredible!

Grey, took out the shadow. It's done!

Well it looks better cause of the shape of the girl, but in order to make it stand out more you should adjust the background with levels(ctrl L), making it darker and blur it a bit.
Instead of that bush for hair i would use these:
http://cgtextures.com/texview.php?id=24807&PHPSESSID=a93838f6f73551a605c8878ac381b63c
It's copyright free, it's already cut and would make a nice touch to the pic, chromatically and volumetrically.
Contest is over, so you can't edit your image no more, but you can make it for yourself and enter it in Mix manipulations contest or in your portfolio.
PS: try dodge & burn to create light & shadow on the body.

very good start for a wonderful collage, good luck!