Thanks for the positive feed back!
To start off... I Used nice 3 inch thick styrofoam for the whole thing. I carved it up and torched it a little and then assembled it and siliconed it to the back and sides of the tank.
Next I used regular Quickcrete to coat the entire background. After doing 2 -3 thick coats.
After all the concrete was cured I used Non-Toxic Accrylic Paints to paint the entire background.
I used the same concrete and painting steps on the wet and dry hides, so they would match the background.
Hear is the tank geographic breakdown...
On the left, under the plant is the dry hide. On the right side, under the ledge is the wet hide. The wet hide has spaghnum moss in it for humidity.
The water bowl (not pictured) is inbetween the wet and dry hides.
The bottom of the tank is ceramic tile. It's the impercect kind with cracks and holes in it.
I left the far left front tile out and filled it with white play sand. I do this for the waste. Since Leo's always go in the same spot, I use the sand as a litter box. This works great for tank maintence!
Don't worry I tong feed almost all of my animals.
So there is no risk of impactation.
For heating I use a 40 watt regular incandesent bulb, on the right side. Since the whole tank is a mix of ceramic tile and concrete, it retains heat pretty well into the night. Not to mention my house never goes under 70 degrees ever.
The temps on the cool side in the day are 75 - 80 degrees and the warm side is 85-90 degrees. The upper ledge heats up to about 90 and the wet hide is around 85.
The flouresent you see in the pictures, is a Zilla 10.0 uvb bulb. I use the appropreate UV in all my tanks. Since Leo's are nocturnal they don't get much UV from the Bulb, but I'm sure it does some good.
This Enclosure is housing My Large Adult Female and one of her female offspring from last years breeding.
My Male has his own 20 Gallon Long, All to his self.
Here is the breeding pair...
The male (Croc)

And Here is My Female (Pink)
Thanks Again!!!
Clay