This is a nice video clip for the music "Baby I'm Yours" all made with watercolor images.
It was (directed) handmade by Irina Dakeva @Wizz and composed of approx 2000 images watercolor painted one after another.
A great reference for my imagery animation.
Looking for watercolor based animations I also found a this reel. The agency is called The Fine Maker.
Looking for some animation references I found this animation collective sutdio based in Zurich.
They are called Partizan Lab and their work is very nice and convered by many different styles.
Check out this one made by Geoffroy De Crecy. I really liked the style.