Hi,
This is a rain simulation in my animation/comics story. It is a simple particles system to simulate the rain drops. The smoke and the rain bounce on the floor are textures displayed by particles systems randomly. The background building is hand draw image. There is a composition node setup to combine all the things together.

If you have time, please go my Youtube or my Patreon to watch this story.
Thank you.

https://youtu.be/_5DxUD1KEco

https://www.patreon.com/posts/sunshine-girl-01-6180899