Big Mom's Incarnations

What is Big Mom's Incarnation?
Early in WholeCake Island arc..
Oda did mention about Big Mom's Incarnations..
They collect lifespans from all citizen in Big Mom's territory..
But Oda still don't show us exactly what is Incarnation..
Its true face..

OnePiece Similarity between Thriller Bark & Whole Cake Island

Now, I would like to talk on Similarity between Thriller Bark (TB) arc & Whole Cake Island (WCI) arc.. Although other Theorist mentioned that WCI also got similar plots as Enies Lobby & Water 7 too..  Although there are few hint of WCI in Alabasta Saga especially in Little Garen arc..

So what is the similarities between those 2 arcs..?
- Gekko Moriah is the leader in TB arc who got Shadow DF ability and he's a warlord under World Government (WG).. While Big Mom is the yonko and the leader in WCI arc who got Soul DF ability. - Gekko creates ZOMBIES by using his DF ability (by putting shadow that been cut from other people into corpse) while Big Mom creates HOMIES with her DF ability (by putting the soul that she got from other people into object or animal)..
-  The mirror effect in TB arc where Brook can't be seen in the mirror while in WCI arc, there's a mirror world create by Brulee's DF ability..
- Perona's dressing and pink hair kinda similar to Big Mom. Perona hold umbrella and Big Mom hold umbrella too.. Perona's lips also look alike Big Mom.. Does Perona got link with Big Mom..?
- Absalom's face kinda look like Pedro.. (I think there might backstory on Lola because of this.. I doubt Lola follow Pedro from WCI but lost track because Zou is a moving island.. Why Lola fall for Absalom maybe dua to her feeling toward Pedro..)
- A lion with man's face in TB arc while there's a manticore in Big Mom's books..
- Wedding theme in TB arc where Absalom kidnap Nami and Sanji want to save her from Absalom while in WCI arc, Sanji got into arranged wedding.. (perhaps Absalom & Bami wears tuxedo & wedding dress..)
- And so on..