Around here in Holland most of us use life plants.
I don't know wich way you guys create the bottom?

Mostly we use hydroballs with something on top of it to keep the substrate from mixing in there, as substrate we use all sort of stuff like the coco-bricks, clay, peatslabs or anything like that.
It will be good for the live plants to grow in and gets the RV up as well.

As wall decoration the most common seen materials are ferntree panels, Epiweb, epoxy raisin with peat or fern tree granulate put on top of it.
This will help raising the humidity as well (except the last choice) and offers the plants good climbing possibilities.

Most of the vivs we use got an air strip for ventilation on the front near the bottom and on top.
This will create a natural air flow providing fresh air and keeps you're windows free of condensation.
By using an aquariumheater the air will warm up,
warm air will rise and that way more airflow can occure as well and at the same time it gets the RV up in the upper half as well as down.

Using a waterfall or stream also puts up the RV and looks nice as well

On top of that most people either use an automated raining system or air humidifier to keep the RV up even when not at home.
I don;t know if any of you use a system like that?
And how do you build up you're viv?
Very curious what ways are used in other countries.