Dark academia bathroom?

I'm (20F) moving soon, and i was curious if any of you had any ideas for a dark academic bathroom (inc. Shower) i did a setup like four years ago on the sink that you guys seemed to like but would like it to seep through the very being of my apatment.

Especially the shower has tripped me. Also should my tootbrush be visible or should i have it in the cupboard? If not, how should it be displayed? I don't share the bathroom, but these are the small things I'm stumped about.