Contrast is beauty. The problem here is the font. Also, what's in the upper right hand side? Either expand upon that or get rid of it.
The proportions, decrease the height while keeping the width. As for font, you can use it to balance the picture. I'm not sure how to say this (too much whiskey at the moment), but it can be used to balance the picture rather than more planets or a starscape. Check out the following link for fonts: