Add some lighting effects.... and maybe a different saying...

"Are You Ready" is such an over used saying... try something more related to spore .... like the one I use in my Feb Constest .... " Live, Thive, Survive "* .... and .. more variety to the backround... add a nebula or space gas or maybe a close up star.... and that is about all i can come up with

*please do not use my exact quote for your wallpaper