Building a background

[LilyPad]

I was going to get some coconut fiber squares from josh's frogs to build my background...wondering if this would work instead.

I have a Terrarium carpet that came with my tank when I bought it. I didn't use it because I knew the coco husk substrate is better. Could I adhere that to the back of my tank and attach some bromeliads and creeping fig to it? What are the chances that my Tree Frog will hurt herself against it before my creeping fig takes it over? I know it's not the softest material but it doesnt look much rougher than the coco fiber squares.