#38 is really cool, but the "Z" is almost scary. Too masculine, technical and maybe slightly too abstract. Portrait/wedding photography buyers are mostly women...need to appeal to them. The fonts for the words are great, but I'd like "Photography" to be much more readable. I think overall I like the circle better than the rectangles of your other designs as it seems more organic and softer, plus it has the subconscious similarity to looking into a camera lens.