Im not fond of the whole layout to be honest. The box shape, its just.. Not right for that type of coloring, and the banner is kinda small.
The sig is in the wrong spot and the site doesnt "blend". The text for example, looks like it was just placed there. Try making it a bit smaller or changing the font. With the sort of tech related style your going for, a pixel font would work best. Lines also aren't just black, they are indented. Add a white line besides it, and lower the opacity. Umm other then that its pretty good.