Watercolors and white gel ink /acrylic paint

If I won't be feeling bad lazy or demotivated, I'd like to build a paper theater, and this will be a background for my little monsters made of fabric

Like these

I need inspiration for the paper theater. I've looked on Pinterest and YouTube, but I don't find what I want. I would like something all white outside, a mixture of art Nouveau/Victorian/abstract/childish decors. If you have suggestions, please! Tell me!

(This is not a real art or craft project. I'm just trying to find something to do while I go through chemio and am a little sad)