Visually highlight the distance markers in the fairways better, you could always add stakes too at those points on the perimeter.
Communication is almost non-existent outside of your foursome, but you can't even say foursome! Every game I've played usually has a chat room for meeting up with others, all inclusive. How about club houses that are actually that for members similar to guild halls in other games? And besides the general chat room, individual club chat rooms attainable by whatever means completes it. Once again, it all out there now in other games!!!
Your greens are very edgy, too edgy not to be able to curse!
Serious coding work need on the greens, once you get above 7.0 GS