The picture is from Izumi Rei's "Kanon & AIR: Sky", a crossover from a Key anthology she helped with. (I'm a huge fan of Izumi's work, as indicated by my "Hibiki's Magic" wallpapers). I worked for the better part of a day on this, trying to make it look really good. I'm not entirely pleased with the lens flare (since I usually hate those), but I think the star behind the title is a charm point.