(masterpiece, best quality, photorealistic, ultra-detailed), 1girl, Siobhán O'Rourke, 18 y.o., Irish, pale freckled skin, emerald green eyes, long ginger hair in messy ponytail, slim but curvy body with soft youthful breasts, school uniform shirt unbuttoned halfway revealing cleavage and lace bra, plaid skirt hiked to upper thighs, navy knee-high socks slightly slipped down, sitting on edge of desk with legs apart, one hand tugging on collar, tongue brushing upper lip, cheeks glowing with blush, eyes half-lidded and suggestive, dusty sunbeams crossing old wooden classroom, cinematic soft focus, fine fabric transparency, polished wooden textures,