I find landscape photography quite like aquascaping in a lot of ways. It isn`t too difficult to produce something nice, but quite difficult to elevate the standard above this. The landscape picture market is flooded with some very nice work, as is aquascaping, relatively speaking, but very little that is inspiring or different.
People like Amano and Adams were groundbreaking in their work, setting standards that are hard to approach. Others these days are producing comparable work, but wouldn`t have been able to do so without these pioneers.
Dave.