Wow, just came across this again, after nearly 6 months. I really liked this image, your capture of the "window clouds" was an excellent accent to the challenge theme. I guess voters didn't see a coffee bean or cup and didn't give this entry the vote deserved.
This image is rather busy, and there doesn't seem to be a strong payoff. Trading the contents of the bottom 2/3rds of the image with an attractive person behind the window sipping coffee in the clouds would have made this a dramatically more interesting composition.
like this use of reflection in the photo. cool concept, cool composition. makes me want to go there. would almost like to see this a bit richer in the colors...
I suppose that this is a picture of what you saw from the vantage of the coffee shop? Anyway, there are so many forces calling for your attention, that it leaves the eye confused as to what to look at, and why. Overall, I really can't find a strength in the picture. The writing seems to be pretty clear, but I think that I see any real reason for this picture. Not to worry. There are many 100's of subjects that will really show your ability as a photographer, just not this one. Better luck with the next challenge.