I dunno. It doesn't look too bad to me.
The trackball sticking out like that does look a little odd, but, if you play any game that requires you to really whack the ball, that layout likely works far better that putting the ball closer in to the screen (where you can bang your fingers nicely).
A little clean up, some custom artwork, a plex overlay, etc could really spruce it up. And that stuff's pretty easy to do. You've already done the hard parts.