The Portrait Photograph Problem

I'm building a quick photography portfolio for my brother, and the challenge is to work out a layout that can handle portrait and landscape photographs.

There's a focus/hover state that overlays the title and description for the photograph. I'll upload that in a moment.

Oh, and Nathan's photographs are on Flickr: http://flickr.com/nathanward. He seems to be dabbling with some sort of cut-out/stencil/shadow project at present, which I still haven't quite got my head around (but you should definitely view them full size.)