Which Category?

Sometimes I produce a piece of work which I'm not sure which category(ies) it falls into. This true of  my latest upload, Psychedelic Roses. It started from a photograph so I could class it as a photograph, but I don't  really dare say what other categories it comes under now. Could it be: digital art, abstract, pop art or something else? I know where I am with my usual medium, watercolours, but this is a little different. Can anyone help me out? You can see this work on the slide show.