Read up on tutorials. You have a good start but you need to learn the basics like lighting, depth, and composition.
Same as Kiyaa said. It's also really big and the text needs work. You'll get it though. Just practice.
+1 Also eternal has a point. Practice practice practice you'll be proin no time EDIT; why not allowed to say pr with an o at the end
I see. Thats a nice touch... i ment itas a compliment but i know why they don't allow classing...can get too out of hand sometimes.