This is an interesting picture, I like it. However, one can't tell if this die is huge or miniature. Something normal sized needs to be in the shot so the size of the die can be known.
I'm sure this is very small - but I'd liketo have some comparison to see just how small - a familiar background that gives some idea of scale or perhaps the corner of another familiar object - a regular die perhaps? I like the detail I see in a tiny part of the top corner, but I wish you had a greater depth of field so the whole thing could be sharp, would work better for a metal object.