So I got some time today and made it out to home depot and got myself another can of GS. What I have done is made a ramp from the land area up to the side of the waterfall to give another area to climb. This is also creating a bit of a dark area in the back that could be used as a hide once everything is in. The plants will grow out enough to make it a nice hiding area.

I have carved out an area in the waterfall near the hose. I have carved this into a bowl shaped area, where the water from the hose will pour into, creating a small pool like area. The bowl will then overflow into the pond area, creating a nice waterfall effect. I added more GS at the bottom of the waterfall. I will be carving this into an landing area, or shallow water, where the animals will be able to sit in the water to soak. If the waterfall works as I am planning/hoping, then the soaking area will be behind the waterfall. After I am done carving, I plan to silicone stones to the gs to the walls of the waterfall, to give it a stone look. Here are some pics.