Thanks for looking and commenting!
I have a 30 gallon terrarium where I grow all my little orchids. Here's a link to an exhaustive blahblahblah about the growing setup:
Sophronitis coccinea
I like the Pleurothallids that have kind of an upright 'tufted' growth habit. I like the aesthetic of pots, where the plant is on top. That's why I've gone this route for mounting. I will probably end up lining at least one wall of the terrarium with Eco-Web and mounting plants more traditionally there, but it will only be because of space constraints!