Hello interloc!

Beautiful setup!! I love it. I would however make a comment on pine shavings- theres arguments on its overall toxicity for rats. I use paper based beddings for mine (kaytee clean n cozy, just a personal preference because it smells like lavender).

Wood shavings in general, cedar, pine, aspen (aspen being the best shavings for rats imo) have a higher probability of developing myco and giving your fluffies resp. problems.

-Rat Pimp