Xu Fu, from Fate Grand Order
ILLUSTRIOUS:
1st ascension: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair ornament, blue hat, chinese hairpin, chest jewel, rope, bridal gauntlets, sleeveless, coat, long sleeves, off shoulder, thighhighs
1st ascension light: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair ornament, chest jewel, rope, bridal gauntlets, sleeveless, thighhighs, toeless legwear
Space Xu Fu: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair ornament, chest jewel, black hat, hat feather, short dress, bridal gauntlets, bracelet
Swimsuit 1: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair ornament, animal hat, white hat, ying yang print, chinese clothes, tube top, flower print, shorts, track suit jacket, off shoulder
Swimsuit 2: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair bow, swimsuit, navel, frills, frilled skirt, belt, ribbon, keychain
Swimsuit 3: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair ornament, large hat, cap visor, one-piece swimsuit, swimsuit under clothes, chinese clothes, blue tube top, blue pleated skirt, belt, ying yang print, thigh strap, wristband,
For "Gu-sama" simply add: "doll"
I'm afraid the third ascension doesn't work, so I wont count it as a costume.
third ascension: black hair, short hair, yellow eyes, mole under eye, hair covering one eye, hair ornament, mitre, chinese hairpin, pauldrons, stole, tunic, long sleeves, medallion
PONY
Notable tags: short hair, black hair, hair over one eye, yellow eyes, mole under eye, hairband, hairpin, hat, chinese clothes, long sleeves, wide sleeves, detached sleeves, skirt, bridal gauntlets, hat, jewelry, bracelet,
The tag for the doll is "stuffed toy" but it pulls it so-so