The only thing I would have changed, which changes the technical accuracy of the photo but makes it more viewable, requires photoshop. If you wanted total accuracy you might put some vaseline or frosted adhesive tape on the part with the reflective glare.
There are limitless tricks to use that have nothing to do with the camera. When I photographed antique tractors I used to run into the problem of some guy putting a white NAPA oil filter or a modern battery with a bunch of graphics on their otherwise nicely restored tractors. They stood out like sore thumbs in the photos. I carried some black construction paper to cover the batteries and cut the foot out of one of MrsWD's black pantyhose to slip over the oil filters.
