Looking at some of the newer works coming from ADA and scapers highly influenced by Amano-sensei, I think it will become clear that the "Nature Style" also requires a huge amount of discipline and well-planned execution. Looking through aquajournals in Japan, its obvious that even in the "natural-looking" scapes, there should be a high attention to detail of both design and plant condition to get it correctly. Really, if you want an A-grade scape, there are no short-cuts.
Probably this is unfortunate, but since ADA is so strongly positioned at the top of the aquascaping world, the "dutch style" seems to have some-what crumbled IMO. I remember when Dutch scapes were focused completely on dense bush groups, and little importance was given to foreground density or visible hardscape-- heck, the foregrounds were just crypts or lobelia, and the hardscapes were just terraces used to make different levels for plants to grow on.
Nowdays, there are so many "dutch scapes" with hair grass, glosso, or open foregrounds, as well as visible rock or wood work that you wonder "what happened to them?" The stem plants in some of Amano's tanks are so well grouped and pruned (compared to the photos of the original Nature Aquarium World which get little attention these days) that you wonder where the line can be drawn before these new-type nature scapes (the ones with heavy stem use that is, Amano still does lots of iwagumi and wood+fern ones) and these nature-influenced dutch scapes.
In essence, I think this mixing is happening so often, all the time, that you should be able to find plenty of examples of people doing just this; that is among both pros and amatuers from both Europe or Asia or anywhere else. I think what really matters is the level of your execution.
Here, I got it!
Nature Aquarium: A well-done aquarium photographed with extremely high photo-quality, ripples on the serface, and an over-exposed white background.
Dutch Style: A well-done aquarium photographed with mediocre photography , and making sure to fill the tank to the top of the black frame using a black background.
Hahaha, just joking . . .