Wonders of the Universe [Wallpaper]

http://img651.imageshack.us/img651/1125/wallpaperf.png

I'm not sure if I'm finished with it or not. I want to add to it but not sure what. Criticism greatly appreciated.

You should try to get another render because its LQ and you also oversharpend it on some places.

dont like the effects on the face

The render is very LQ, try and always us HD renders or photos in LP's. Next, work on blending. Pretty much everything looks like its just floating there, even with space art you should still blend stuff in. When you dont blend it looks like you just pasted on the renders (ie the little space ship). The font color for "Wonders of the Universe" was bad. Dont pick a light color when the artwork is all dark, it makes the text stand out from the rest of the artwork too much. Just pick a darker color and blend in the text. The text for your name is also too big, just make that text smaller and it would be fine. The effects are nice, but they are way too strong. Your effects are the first thing I notice, tone them down a lot. You want to keep focus on the main render.
Just keep working at it, overall its a pretty good art work.