You're definitely on the right track. Were it me, I'd add a couple of nice, broad leaves plants. Think Spathiphyllum, Philodendron, Asplenium, etc. Maybe even an arborescent Ficus, if you don't mind pruning. I do like the central log, might make a nice spot to mount a pendant Anthurium.
Some big leaf plants will be good for them to perch on. Something strong or they will be on the glass a lot. I have regular green tree frogs, before I switched over to live plants, from te fake, they dont stick to the glass as much.