Rhys is depicted in 5e on Tasha's Cauldron of Everything, in the "Group Patrons" chapter on page 103. She is not blue and doesn't have any horns in the picture from Tasha's, just like how she appears in that picture above.This is such a treasure trove. We've got weird faces leering out of everything, and spikes everywhere, which is As It Should Be.
First person on the left might be Rhys of the Ciphers. The tail and the big ears resemble the 2e art a lot.