Virtual Art Museum Built with Three.js

My wife wanted a website for her artworks. While building the website, I suddenly had this urge to try building a virtual art museum to give her motivation. It turned out not bad. Put the rain mode on if you like cats btw.

I'm still trying to optimize the performance as I'm having random fps-drops on Android devices.

Let me know if you notice any bugs as this project is still in early build. It works best on PCs although tablets and smart phones are also good to go. I'm open to ideas to make it more beautiful.