well, ok the part to the inside top of the handle was top-notch.
(the part where your index finger rests)
but there needed to be a deeper type of shading on the inner cup part.
(the part where the coffee goes)
try drawing in a fatter pen and then shrinking the image slightly, this will make it look more detailed.
(must scan at hi-res first, then shrink, then change to the resolution you want)
The negative one looked cooler, that one was not there last time i posted, could be my crappy internet tho.
but this is all constructive critism, being the devil, i am, of course, better at the other kind.
Do or do not, there is no try. -Yoda