Large mystery enclosure build for a new critter coming soon. What is it going to be?

So today we take on the task of getting one of the large enclosure ready for an animal that we've been waiting on. I came across something amazing on Facebook Marketplace that somewhat kicked this enclosure build off into high gear.
I absolutely love how this entire build came together and I think the new critter is going to absolutely love it.
What do you think?
Do you know what the new critter is?
Do you think I did the amazing new critter justice with the build?
What would you have done differently?
Thanks for watching,
Biggs