Maybe try adding a patterned background, or if you really wanna knock yourself out go for a parallax scrolling theme and add a nice description for each of you're projects
The design overall is simple and suits your need, though (that is, if all you want to do is have a site to show off your projects). I would recommend adding something of a contact page, however, coupled with an "About" page where you explain a bit about yourself.
It's nice to add a bit of personality to your site, makes the reader feel like they are on someones site, and not just some website