Yuri, Doki Doki Literature Club, birthday celebration, purple long hair, elegant posture, holding a book, lavender eyes, light makeup, gentle smile, purple ribbon, long sleeve sweater, pleated skirt, thigh-high stockings, sitting at a decorated table, birthday cake with candles, party hats, confetti, classroom setting, festive balloons, soft indoor lighting, medium shot, warm color palette, cozy atmosphere, detailed textures, visual novel style.