How should I go about decorating and improving the interior of my build?

(Hope any jjk fans appreciate this)

So I built this wheel to make it my base on my survival world, and I’m having trouble getting ideas on how to decorate, I’m making each outer sphere into its own room each with individual purposes, so like, storage/utility, farm, barn, bedroom, etc, and the inner one is just sort of multipurpose and for bringing stuff in and out with happy ghasts, but I kind of hit a wall because I’ve never built bamboo structures before and I’m just mentally stumped, the only interior room I’ve started on is the farm but right now the other ones are empty, any ideas are appreciated