portrait thick impasto oil painting cold tone

--- Generate 4 independent 9:16 images (do not stitch into one): Aspect ratio: 9:16 Style: expressionist thick impasto oil painting + visible brushstrokes and paint buildup + subjective high saturation (oil painting, not photography, not smooth anime) Subject: Oshi no Ko female character thick impasto portraits — one character per image, vertical Character appearance must be highly consistent with their original anime appearance; key hairstyle/hair color/facial features and aura/signature traits clearly recognizable; avoid replacing with an unrecognizable generic face. Female character details: Korean-style goddess feel, luminous milky skin, detailed skin texture & pores & moles, large clear eyes (facial rendering retained under thick paint). Characters (all from Oshi no Ko, one per image, explicitly adult, East Asian aesthetic): 1) Akane Kurokawa (dark hair, serious and sharp — not Ai Hoshino) 2) Kana Arima (red hair, stubborn) 3) Minami Kotobuki (blonde hair, idol aura) 4) Ruri Kaburagi (dark hair, calm manager) Clothing: signature red-carpet/casual colors, bold brushwork, not erotic Composition: half-body, strong brushstroke background Constraints: Oshi no Ko only; strong expressionist oil painting; recognizable; no national flags/rising sun; no large blocks of readable text