Those types of filters are a thing that is being requested/suggested over and over and over again. As far as I know, still waiting for a front end to implement it.

Aww photography is totally art! They have to think about lighting and composition too :D I think I get where you're coming from though, I spent years and years on dA and there were several people that kept putting their work in the 3d gallery even though it was totally and completely not 3d. That was the beginning of the end of browsing tags and trending pages for me.