I am a visual person and it helps me to see what people are talking about...are you the same way? I have suggestions, but if it is better for me to draw (which I am not very good at) I will scribble out my idea instead of typing you a response. I would also suggest if you are ok with buying stuff, buy some live plants. They will help out with the humidity in your tank, give some proper shelter for your WTF, and ease stress in your frog. I have a few fake plants I use in quarantine tanks and the frogs never seem to be to thrilled with them. Put a live plant in and mine will use the plant to hide and sleep in. Photos is a good, cheap and easy to find, beginner plant if you are unsure of growing live plants. (If you go this route, there is care that needs to be taken in cleaning the plant to make it frog safe.)