Nice. Al Campbell used to have a macro photography tutorial here on faol that did much the same thing, using an empty translucent plastic jug...cutouts and all. I have been using a larger "light tent" made from wire hoops and curtain material, that allows changing background colors. Mike Valla's fly photos are exceptional. I think he's at the other end of the technology spectrum from the foam cup however--using $400 apiece strobes and reflector/diffusing umbrellas. Hans Weilenmann (Danica) makes the best fly photos in the world I think. Not sure how Hans does it. I suspect he's using strobes too. But I don't know.