Okay, I guess that's about it...I did mostly "aesthetic" stuff. The biggest improvement to me was rotating the skybox. I didn't like the view on #6 tee. The background trees were too high. I think it looks a lot better, now.
I put in a few rabbits, birds, butterflies and foxes and touched up here and there. If you have an older PC, set it to about 800 for the best frame rates and no ugly redraws. I included my 3 wood challenge recorded round! (no more than a 3 wood from the tee or a 5 wood from the fairway) Have Fun!