well, trust me, everyone that looks at this sees something a little different. i think what you're calling a hand on joan's shoulder is part of the shadow damage that extends down across the tub. but, if i were to do another image a different way, i'd prolly see what you're seeing
here's another shot. this was pre-polaroid d&s. this one shows some of the background detail more.
oh, and deadants, the insect wing is directly over muriel's head and to the left of the spigot. you shld be able to pick it up out of this one, even with the heavy jpg compression i had to do on it.