To me it looks like a cigarette fell into that cup. I miss a hint of coffee in there. Or even better: coffee being poored in. Apart from that: well done picture.
hmmmm, not so sure about that stem there, seems that a cup that size the coffecc would still have to be somewhat visible at this angle to be stemming hot; still a nice image, well set up, well composed, and nice lighting
I really like this set up. The lighting is wonderful and the composition is clean and attractive. My only thought, because that mug dips down in the front, I'm like 'where's the coffee?' I like the use of smoke though.