I've found that boas do enjoy climbing a bit...

If you want to spruce things up, putting some big pieces of drift wood in there would like nice... Or a couple shelves at different levels wouldn't go unused.

But I would definitely make sure they're secure if you use them, otherwise they'll get knocked over and drug around.

I have plans down the road for a nice display for my six foot girl: It's going to be two levels with large holes in the shelf so she can climb up and down. Branches interconnecting so she can use them to balance herself as she switches levels. Probably not much in the way of vine-age...she's so big she would either tear it down or squash it flat. Maybe just a few things along the wall for my benefit This thing is going to be long and tall to give her plenty of space...

But, yeah, hope that helps