ceridwen_daae is studying photography in art school, and I remember her remarking to me once that "art photos" are often heavily doctored, either in the developing process, or through cropping, or if digital, through something like Photoshop. It just occurred to me that the analogy would be painting, where (in an oil painting) the artist often scrapes, re-paints, etc. In watercolor, though, once it's down, it's down forever (usually.) So in a sense, it sounds like what you are thinking of are "watercolor photographs," i.e. where the composition is all done on the camera/shooting end, and "what you see is what you get." I think that's cool; it is a more 'natural' kind of photography.