Prompt: a highly detailed, photorealistic portrait in the style of Soviet posters, featuring three Caucasian children of different ages, symbolizing young leaders. The children are portrayed confidently, with expressions and poses that convey leadership qualities such as determination, intelligence, and cooperation. The eldest, standing in the center, exudes confidence and vision, perhaps holding a book or a small flag. To their sides, the younger children look up to them, one showing curiosity and the other demonstrating eagerness and enthusiasm. The background should be simple yet bold, using a color palette reminiscent of Soviet art, with strong reds and solid contrasts, emphasizing the theme of leadership and unity. 35mm