I love that image! It looks great, Scott...
Another option (that would be attractive IMO) would be to do a second rectangular cut-out in the mat. The second cut-out would be for the leather Ball Panel below the photo.
I really think it would serve to enhance the important signed portion, and also provide symmetry. That way, the photo and Ball Panel would both be recessed.
I would do it this way, but that's just me
