Need Ideas, and getting desperate

[DJ Captain]

Hey gang,
I started my very first paludarium, after feeling I've done well with my 3 saltwater tanks, and my brackish. I've stoned the back, ran a huge filter for optimal water movement, and though I had a great idea for caves and a platform for some poison dart frogs that I hope to house along with some (I'm thinking) salamanders. But, im stuck and need some ideas. I am working with about 125 gallon tank (72'x20'x18'), and need ideas to cover the "egg crate" I used to support my ledge (images included). Here is what I've thought....

1) Use stone to "sandwich" the egg crate. Not going this route, unless nothing else comes up. Thinking it may be a bit too much stone.

2) Build wood "closets" to put around the egg crates, not crazy about this idea for the basic visual aspect of it.

I'm really stuck, and open to any ideas you all may have, so let them rip...

Thanks in advance!!

[Bluegargoyle]

You might consider a combination of materials to look more natural. Maybe use some rocks, and then in front of the rocks have some well-placed plants.