I know I'm just being picky here, but I've noticed your using some kind of wood chips for your substrate? I would reccomend using coco-coir instead. Simply because you can soak it in water which creates a LOT of humidity really easily and it never moulds (mould can cause respiratory issues). Plus it is softer and easier for your baby to walk on. This is just my opinion, but I always think walking over wood chips with such little feet would hurt after a while.