Brett
Some of what I showed is totally man-made. Sure, in nearly all cases time had a way of melding the features to the landscape, but I don't think it takes much time to do this. In any case, I am not so bothered about features which blend with the terrain. I am far more concerned with diverse features influencing play. I used to be into naturalism and I still am, but that is now very much a secondary issue for me. I can look at Raynor holes and see a completely constructed (and imo with little care to fitting into the landscape) set-up, but what I am looking for first is varied and compelling golf. There is no question Raynor was able to deliver the goods even if he wasn't terribly artistic or daring. He at least was smart enough to know that he didn't have to re-invent the wheel everytime out and to stick to what works. I know, I am arguing for a guy who didn't really think outside the box (and I want archies to do just that), it is just a chance of history that his courses visually stand out compared to his contemporaries and even archies decades after his death. The point is, his manufactured look has a beauty of its own for those interested in hitting shots. I think the same holds true for using other forms of "hazards" instead of bunkers. So to answer your question, by the rules, my suggestions are not hazards, but in the spirit and history of the game for sure my suggestions are very much hazards.
Some features have been downplayed so long by archies that for many golfers they are now considered unfair. Examples would include reverse camber doglegs, blind shots and retreating greens. These are very basic tools of the trade which when not employed cause archies to seek out other ways to create interest and so often all they can come up with is sand or water. As I said earlier, only Strantz really attacked the issue head on with any semblance of a nod to naturalism and his work is very polarizing. So I am not suggesting that thinking outside the box is easy pickins for archies, but at the same time I expect at least some leading archies to lead the field of gca rather than build by conducting polls.
Here is a cool set-up for the approach - stolen from another thread. Imagine this hole with only the tree closets to the fairway - combined with the sloping green and hollows protecting the right - this is very interesting indeed.
Ciao