She didn't do the art for Shrieking Shroom specifically (that was Matt Dixon, God of Cutes), but Charlene le Scanff is our resident make-everything-charming-af artist, and most of these mushroom people are her brainchild. She and the other concept artists were doing exploration for another set a bit ago and some of the lil' dudes she made are so freaking cute I seriously want to dedicate a whole board corner to them.