This redone art depicts May Lily of the Valley's belly through an X-ray machine and she's clearly eaten a fair bit. The card's info says:
Inside the Belly of the Chubby One
Equip Spell
Equip only to a "My Chubbier Pony" or "My Chubbiest Pony" monster you control. If it destroys an opponent's monster by battle and sends it to the Graveyard, it gains DEF equal to the DEF of the destroyed monster, Then, Special Summon 1 "Food Token" (LIGHT/Food-Type/Level 1/ATK 0/DEF 0) to your side of the field for every 500 DEF of the destroyed monster.
Rainbow Rare