Grace Princess Mari
Full art:

“Oh no!”

Lady attendant:

“My apologies”

Mari:

Mari: “It’s OK, don’t worry ✨”
“Urgently hiring new opponents”

Source.

Grace Princess Kaori
Full art:

Outfit:

Top: “The inner part is shaped like a star”
Bottom: “Designed after a stardust pattern”

Outfit #2:

“A star silhouette…however if one looks closer, it’s cherry blossoms”

Accessories:

“Incense-like accessories here and there”

Habits:

“Spends all day sitting down, terrible at sports” *Sulking*

Self-reflection:

Kaori: “I wonder if I’ve grown a little softer lately”
Left: “Say aaahn~”
Right: “There! *misses*”

Source.

Grace Princess Mai
Full art:

Large forehead:

Advice:

“Lack of sleep is your skin’s worst enemy”

“Since [her forehead] gleams very quickly, she always has face powder at hand”

Source.