OK, lots of ideas here.
Starting with my own list that I posted earlier:
kitchen
windows
doorways
teacher
smoking
view from below
restaurants and bars
garden
camping
boots
business women
non-firing weapons
hourglass
food
drink
wind
high heels
smile
on her backI've added some selected from the posted suggestions, with my comments (full list at end - if you're especially enthusiastic about any of these, shout and/or expatiate and we'll discuss)
Animals (not involved in sex)
Super (~heroines, ~heroes ~villains)
Stewardesses, nurses (how about
uniforms in general? We had military women, but not uniforms in general)
on the farmfrom behind+++++++++++++++++++++FULL LIST of new proposals+++++++++++++++++++++++++
Amazons
Pinups
Stewardess
Superheroes
Movie sex symbols
Nurses
Destroyed bras
On the farm
Under the waves
Dancers and Pole dancing
Red carpet
From behind
Shadows
Before and after
Orgasms
Femme fatale
Animals (not involved in sex)
pumping the breasts
boobs big enough to obscure the face, sit on, or lie beneath
There seems to be quite a lot of enthusiasm for fantastically impossibly brobdingnagian boobies. We did have the themes
OMFG huge! and
Brute force breasts (July and August 2016): maybe something similar?
I feel that working on the base of a single model, even a single photoshoot, is too restrictive. But if there's more support for this, I'll try to roll with it. Gonna be hard to choose a single model that suits many morphers, though.
"Heaven and Hell"? You mean good vs. evil? We did have
Evil! as a theme (Sept. 2018) and Captain Nemo posted the following as a supplement, is that the kind of thing you mean?