saitou natsuki, kourin tenshi en ciel rena, game asset, large variant set, lowres, non-web source, official art, self-datamine, variant set, 1girl, 2000s (style), :d, ^ ^, back bow, blue sailor collar, blue skirt, blush, bow, bowtie, breasts, closed eyes, cowboy shot, glasses, green hair, hayama tsukasa (en ciel rena), long hair, long sleeves, medium breasts, open mouth, pleated skirt, rimless eyewear, round eyewear, sailor collar, school uniform, serafuku, shirt, simple background, skirt, sleeve cuffs, smile, solo, standing, tachi-e, transparent background, yellow bow, yellow bowtie