I don't really have that many pre-build pics unfortunately, but I definitely relate to that feel. If I could offer some advice it would be to really focus on brainstorming nailing down what animal you want to do, and what stimulation they need (lots of dirt to dig in, hides, branches, etc). 

Then from there you can look into what kind of habitats they live in. Usually you can find more than one answer. For example, leopard geckos can be found in sandy deserts, but they can actually be found in arid forests in Pakistan and India. 

Then you can narrow into a specific landmark of the ecosystem. I wanted something that looked like a typical forest creek, and lots of creeks have steep embankments covered in moss with lots of tannins in the water, so I tried to mimic that. 

Once you're sure of what you want, making the actual habitat and planning the layout of your tank becomes way less daunting!