I think it would look better, imo, if it was made as a fixed-width design. My monitor is 1920x1080 and it just looks kind of bare at the moment, especially with the characters in the banner being placed so far apart because of the size of my screen.
The font for the section headers on the main page also looks a little out of place. Also, I think all of the grays should be much darker, since the games are Black and White, not Gray and White.
I really like the theme though. Forever Standing is probably my favorite at the moment, although the banner is off center when I maximize my window.