couple of things which you could have improved IMHO:
you could have avoided the obtrusive deep orange border. maybe black 1 pxl would have been much better
this is one of the typical issues of using a macro lens, that in fairly large number of cases, the entire frame will not be in focus even if the entire sensor content is in a single plane. It would have been better if you had actually focused on the ball rather than the grass on the front left and right sides.
Hope it helps
Nice idea and photograph there are 3 things that distract me. The first is the tee is not strait. Second is the highlight on the right side. The third is the grass (don't look like it was taken on a golf course tee box), greener and not dead/dying would have pulled the shot together much better.
I like this shot with this theme. My only change would have been to use a more muted tee. Maybe something in natural wood as the red seems to bleed a lot. (7)