There's actually a link to a full-size version right under the photo, if you'd like.
Shooting directly into the sun can be difficult to work with (it contradicts my instinct to retain the highlights, at least) but I find myself doing it for a lot of my favorite shots, it seems. When it works out, the results are often very rewarding. That particular sort of lighting just really does it for me. I have a very similar photo from my pre-pentax days, actually: