Carbonmade is plain and basic. And while I tend to believe that less is more, the only real customization they offer is allowing their artists to select between 2 different background colors.
With Sliding Boxes, my goal is to offer artists a more beautiful and customizable canvas for their work. Boxes on the portfolio's front page slide to reveal other artwork. And because it's built as a one page application, page transitions are sublime: http://lucalagreca.slidingboxes.com/