I admit I like the sound from what I hear from the courses so far...even if it's a bit generic.
Back in the Links LS days (hands up, Links people!!), I recall their adding in jet planets taking off when a player was at the 8th at St. Andrews, and the lilt of a bagpiper at the 1st or 18th holes there.
That, and maybe some slight animation/waggle from players or even fake crowd wouldn't hurt much to add, would it? Of course, there should be options for those to be turned off.