Don't limit your viewing area just to the front, why not try a 3 sided viewing style with just the back wall covered?
Very cool forum that follow the build of this paludarium... Probably spelled that wrong. If you go to the end you can see it with all the plants!
Fake tree root background terrarium -
12x12x18 Zoo Med Terrarium built as a Giant Day Gecko habitat. DIY this terrarium with Hydroballs, Eco Earth, Frog Moss, Cork Flats, Cork Rounds, ReptiRapids Medium Wood Waterfall, and live plants of your choosing.
Vivariums, From the Ground Up
Substrate--very useful info that pertains to healthy substrate in hermit crab enclosures as well
I covered it with a compaktuna(/flevopol)-and peat-mixture. I finished with sealant and peat.