Great point of view that shows off the action of him drumming from a different angle. B&W tones are great. One critique is that I think the image grain is a bit too much. It feels a bit too 'gritty' that contrasts with the bright smile he has as he bands the drums. To me the grittiness contradicts the 'happiness' I see in the scene. Perhaps making the image grain a bit more subtle and not so heavy would have been better for the photo.
Great image, I love the perspective. And even though the drum is front and center, the drummers smile pulls my eye to him as well. The grain also adds to the image, fulfilling the challenge well.