I think that I want to change this to make a planting more like what I have in my 12 X 12 Exo, with pretty short terrestrial plants planted into the bottom and with epiphytes planted up around the top of the manzanita. I don't have a recent picture, but you can see below that some of the plants are pretty tall and reach up to the top of the enclosure. They have grown even more and now are covering a lot of the branches. They also cast a lot of shade and now the only part of the tank that is very well illuminated is the front, with the effect that the whole thing lacks visual depth and looks flat.
Here is a recent shot of the 12 X 12. To me this photo looks like a larger enclosure than the 37G. The shorter plants in the bottom and areas of bare manzanita branches create an effect of greater height.
For the 37G I want to just leave the small palms in the bottom and maybe add a few more short plants, then plant orchids and/or Tillandsia
up around the top. It would be fun to look around for some more unusual orchids that will fit well in the space.