While guitars can be found in coffee shops, this photo doesn't appeal to me as well as others in the challenge. Perhaps I'm too much of a traditionalist. I do like the overall blue tones, it's just something about the overwhelming sense of blurriness that I don't care for. Sorry.
While this does, to me, meet the challenge requirements, I don't find it standing out among the crowd. It is technically fine, with good composition, but maybe if you had someone playing the guitar in a dimly lit "coffee house" kind of mood it would have scored better.
This is a very nice photoI like the color, and love the DOF. Maybe if we were looking down past a table with a cup of coffee on it this would be easier to link to the challenge. I loe the technical execution though - it is nice work. 7
I like that you went for something other than a cup of coffee. Also, it's a clever use of blue. That said, I think your depth-of-field could have been higher.