Very interesting photo, thematically speaking. I think that the grain of the wood is a little distracting and that mirror could be a bit clearer/sharper.
Not sure I like the crop of this shot. The glass nor the coin are particularily in proper focus so I'm not sure what your main subject is supposed to be here.
Kind of a bland picture. Colors are weakish/plain and if the glass is to be the highlight, you might have wished to have the reflection vice the coin in focus.
Using a full mirror, I think, would have improved this shot. The wood grain is distracting, and the wood surface doesn't seem to be very clean either. I like the DOF and perspective.
I don´t know why but it bothers me that you have all that space to the left and then don´t include the whole coin in the frame, just don´t think it "looks right" sort of.