Tom,
The five wildest greens (1, 2, 8, 10, 17) belong to the father but Press's greens have tons of appealing character as well, especially 12 and 14, and it is largely the overall excellence of the greens that gives the 18 holes a unified feel.
Plus, as you say, Press clearly learned from his father to follow nature's lead. Wasn't it Max Behr who said that links golf is the highest form because evidence of man's handiwork is at a minimum?
Prairie Dunes epitomizes that philosophy.
Cheers,