This is a great concept and a wonderful subject, but it just doesn't work for me and I can't quite put my finger on why. Maybe the yellow background is too cheery. Could you have done the same thing on an old piece of wood?
This is a great idea. I think it would have been interesting to have the stamp standing up in an upper corner of the frame as if it were a distance away. Focus is a little too soft on the handle for my taste here, but overall good job. 6.