Just in case you didn’t know, Fran from Stampendous is doing a Watercoloring series this year.
The first video was today, and it was really full of information. It is about an hour long.
https://youtu.be/T6QaKt-oCb4She is using Daniel Smith watercolors, Canson watercolor paper and specific tools she is selling at her website, along with stamp sets that are specifically made for this series and cards.
A new video should be released each Friday. More stamps will be released throughout the year, I think.
I think it looks like a really good resource.