This is a needle felting tutorial by Felted Sky that shows how to make a Woodland Stream landscape. This is a fiber "painting" made with sheep's wool and a special felting needle.
This kit is no longer available, but the wool can be found here: https://feltedsky.com/collections/wool/products/felters-fleece-1-8-oz?variant=31748750966856
And here: https://feltedsky.com/collections/wool/products/felters-flowing-wool-1-8-oz?variant=31748924899400