This is my/my gecks absolute FAVORITE thing in their tanks (I have 3 cresties, 3 tanks, each of them has one of these). Its this awesome mossy vine that you can bend and shape any way you want! It's super fun and they love to just hang out on it.
Also, 2/3 of mine love these reptiles hammoks. They practically live in them at night :)
If you end up adding some live plants, my female crestie loves pothos plants, and my skittish male loves his snake plant. They're great for coverage and I find they're a bit softer on the geckos' skin than the fake foliage (although I definitely use that too! The more clutter the better :) )