Ruby Thursday, aka Thursday Rubinstein, is a member of the supervillain group known as the Headmen, who mainly fought the original Defenders in the 1970s. Having invented a supercomputer made of a malleable plastic, she replaced her entire head with a sphere made of the stuff.

Tags are "Ruby_Thursday, bodysuit, center opening, cleavage, red elbow gloves, red high heel boots, collar, spherical head, faceless". This was tricky to tag and train: AI doesn't cope well with such a non-standard head, so you may need to add stuff to the negative prompt to stop normal head stuff creeping in, mainly hair.