Nice simple background and I like the use of the text in the background. Great render effects. I love how the shirt and the shorts look but I feel the face could have been a lot more visible. It could have probably done with a few light textures as well but I think you didn't add any because you were going for a much simpler wallpaper. The text, though simple, isn't my cup of tea. It just doesn't flow with the rest of the wallpaper and the dark, brown tone you've created.
Keep up the great work! This is one of your best pieces yet.