Wallpaper design

My first attempt at designing a deskop wallpaper. I wanted to create something with an earth or living feel to it, and this is what I came up with.

I made this using adobe Illustrator and Photoshop CS. It took around an hour and a half with the concept already in my head. Any constructive criticisms are welcomed and greatly appreciated, I finished it off in Photoshop which could be why the edges are a little jagged or sharp. Tell me what you think.