Need new cage advice :)

Hello everyone! I just welcomed home 2 new female Rex rat babies and want to make sure I give them the best life possible and provide them with the most enrichment I can while they’re in the cage.

Based on my setup in the pictures, which is temporary based on feedback, what would you do? What can I add, or move or even change completely? I’m open to all advice.

I’m also making them cage liners right now, so the puppy pads are temporary for sure. I want them to be comfy and not get foot issues or anything. :) any advice is welcome!

Thank you!