A little too bright which makes the cup appear a little blurred as well. But I like the idea, the cup as the mistical sense and when centered it doesn't throw your attention at the other clutter around. Two more suggestions, the toning is too warm, adding a little blue would help and you should have included the rest of the shadow it would have added a nice touch to the picture.
With the dark backgroud and how the coffee cup starts darker at the top and lighter as it goes down really helps this shot, looks like the plate maybe a little over exposed. Doesn't look real sharp, but not soft focus either.........4 imo.
I like the way you've worked your light to get the best dramatic effect. It's somewhat let down by the composition which results in a bit of a ho-hum image where it is potentially not ho-hum at all.