more stuff i was slow to discover for Humanoid only:
All NPC Companions
Bananaman
Businessman
Celebrity Date all poses
L-01 Automaton buddy
Odanodan (Odanodan)
Possessed Med Intern
Gaia-Sama and Gaia-Tan
Orinkage Hurricane (both Orins)
and probably some more i'm going to check out tomorrow, i gotta go, right after i say;
Also, Gaia-Sama's I Am pose works like emgnol and wisp.
i rooted around in the MP again today, found some more stuff:
For Humanoids Only:
Archangel's Blade (Michael)
Ballad of Orpheus (don't look back)
Black Album (Puck)
Grace of Anteros (Anteros) side note: (you are Anteros) is a humanoid IA.
Grace of Aphrodite/Eros (Aphrodite/Eros)
Her Infernal Magesty (Sentinel)
Nutcracker Prince (The Prince)
And for everyone else:
Lucifer's Wings, all poses; behind only, right half only
Mewpit all poses behind only
Sanzuwu and (Right shoulder perch) behind only.
Artist Application and (Background--behind only on emgnol/wisp)
Golden Aurela (background) behind only
Niji (Rainbow Running) partial white ghost behind; both sides on HSP; complete behind on Dander/Coffin/Jack
PNT-BKT front only and (both Photos--partial; complete on Dander/Coffin/Jack)
Selection Fairy (wings) behind; not at all on HSP
Soft Sugarlace partial on HSP; front only on Dander/Coffin/Jack; not at all on others
Rakugaki Style (Graffiti wall) shows both sides except only the rail shows from the front on emgnol/wisp and HSP. It also works for the Rolla Driva invisible trick.
Keiko's Cake brings us a new I Am pose. (edited) It's a Grunny type, if you read what i said before, i was mistaken: there's only one exception--no backgrounds that layer in front of Rolla Driva (they're listed in the invisibility section, second post).
Also:
Keiko's Cake (Keiko's kitchen) front is partial; complete on HSP and Dander/etc.
Humanoids show (the cake's a guy?) front only.