I would like it a tad less exposed on the upper left of the coin but this is a great shot. I like the way it reflects light on the table in front of it.
Nice macro. Just a little over exposed at the top left of the coin. Of course, this may have been the effect you were looking for, but I'd prefer it toned down just a little.
Some over-exposure -- you've lost detail in the top left edge of the coin, and I don't see that it helps to communicate anything useful: in fact it stops the coin looking gold I think: makes it seem a cheaper metal. Still an intersting shot though.