Isn’t the TEXTURE just awesome on these pieces!!! You may contact the ‘artist’ directly thru her etsy link. I believe you could achieve a similar effect by PLAYing with wool fleece/roving and embroidery floss [or other decorative/metallic [thread] on a flax/linen background/canvas. Don’t be afraid to experiment and have fun!
Sheepy Hollow Farm 
Anyway of learning how to get this cloud effect using what I think is yarn. It would look great in a hooked rug.
Isn’t the TEXTURE just awesome on these pieces!!! You may contact the ‘artist’ directly thru her etsy link. I believe you could achieve a similar effect by PLAYing with wool fleece/roving and embroidery floss [or other decorative/metallic [thread] on a flax/linen background/canvas. Don’t be afraid to experiment and have fun!