From one of the "Animename Pictures" Twitter accounts that tweet out tons and tons of great pictures unfortunately watermarked with "animegame dot party" (don't go there, it triggers uBlock Origin)
Looks like you don't comb hair of your Minako. Just look at Mr. SAILORMOONRED's doll. Her hair is always smooth and well combed. Maybe he even washes her hair every day before putting her to bed. I think he loves his doll more than you love yours.