Let's not forget Knott's fantastic soccer 'scapes
I doubt an aquascape with any of the elements you mention will even win any awards, because I imagine many judges of such contests would frown upon their inclusion. Luckily, not every tank has to be made to win awards, and people can have fun adding whatever decorations they like.
Personally, I have seen some great biotope tanks with fake backgrounds that made the tanks look fantastic. The pagodas are great as well, as they reference the old style of chinese painting that often included tiny people and buildings into a large landscape.
Toys and other decorations can be a lot of fun. This is a hobby, no reason to get too serious!