This looks great! Quick tip: if you're using photoshop to put the coins on a background just make a duplicate copy of the two sides merged together (turn off any effects like glow/dropshadow/etc.) and turn this top layer copy to "soft color" mode at like 15%-25% to remove any hazing and recapture the true lights and darks you see with the naked eye.
...aaaand, whoosh, that went over my head... LOL
CF30