Almost a great picture. We wouldn't want to show out-of-focus prints to our friends, so why do we expect them to buy a bunch of fuzzy notes? With just a little extra attention we can produce a marketable crystal clear product.
Simply focus. Expect clarity and insist upon it. Adopt a no-junk mindset. A carefully centered mouthpiece buzz one note at a time does wonders. Start slowly and listen. The ear must be as critical as the eye. A free-flowing air stream must hit the center of each pitch. The sharper and flatter edges of the notes are not acceptable. Improvement happens better at slow speeds, so hold the camera still. Take aim, focus, and shoot.