Clean minimalist portfolios have been popular for years. Since the goal is to get people focused on your work, minimalism can remove distractions and keep attention where it belongs. Granted more aesthetic features can prove you to be a more competent designer - but they need to be elegant and complementary to the layout.
I've put together a series of white-colored portfolio websites ranging in theme from minimalist to fanciful. You can find dozens of examples in this post which elucidate the critical features of a great portfolio. Some examples are personal websites for a single designer while others are made for companies and creative studios. Overall you're bound to find a few designs which catch your eye and provide some inspiration for future website projects.