flat mid-century Soviet book cartoon with bold ink contour over flat gouache color planes, hard-edged unmixed shapes leaving white paper gaps, rosy cheek patches on adult faces, vast white background, three young adults of 25 to 30 by a striped fence, one in brick-red shirt and ochre-yellow trousers holding a glowing sparkler with ray strokes, one in grey patterned suit leaning forward curious, one in blue polka-dot hat with feather smiling, flat two-dimensional cartoon color planes with bold contour, no blended washes no gradients no realistic modeling, no children in frame, festive curiosity mood <lora:training_7185876-20260927070815457-09s0:1>