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A vertical 3:4 smartphone-style photo: a woman is photographed from behind in a three-quarter view from the right, her body slightly turned toward the festive background, with her face visible only in a soft side profile. Her expression is calm and focused on the decorations. She has long, straight, thick hair falling freely down her back, with one hand raised to the back of her head, gently holding a strand of hair. She is wearing a white satin slip dress with an open back, thin straps, and a crisscross tie at the lower back, along with small pearl earrings and a dark watch on her wrist. In her other hand, she holds a round white cake on a white cake stand in the foreground, topped with gold number candles displaying the Persian numerals «۲۴» and a small handwritten congratulatory message. Behind the model are large champagne-silver foil balloons shaped as the numbers 18❤️, with glossy highlights, creases, and reflections; above them, a beige paper garland is stretched in an arc, with white letters spelling “Happy Birthday” on a thin white string. The background is a dark gray textured plaster wall with raised, chaotic lines. Soft natural light comes from the right side, creating delicate shadows on the skin and bright reflections on the balloons. The color palette is restrained: gray, ivory, white, champagne, beige, and gold. The style is a realistic at-home birthday photograph, with sharp focus on the figure, cake, and balloons, a subtle smartphone-style depth of field, natural proportions, and a relaxed festive atmosphere.