A heta-uma (clumsy-yet-charming) hand-drawn illustration on a solid pink background, depicting {a scene of twin boys playing in the park}. Scatter multiple small scenes and figures randomly across the paper. Each scene appears to float independently, with a slightly uneven composition that isn't tidied up too much. Draw the figures plain like children and quite clumsily. Distort the body proportions a little; don't make limb lengths or face sizes uniform. Keep faces simple, with eyes, mouth, and cheeks drawn minimally and roughly. Don't make them skillful or too cute. Basically no main outlines. Instead of black contour lines, form the shapes only with masses of color and, here and there, thin, unstable, faint color edging. If there is an outline, keep it very weak, rough, and broken. The coloring should have a grainy hand-painted feel like crayon, colored pencil, pastel, or gouache. Leave uneven fills, overruns, scuffs, and color misalignment; don't paint cleanly and evenly. For the palette, build on the pink background and freely use bright colors such as red, orange, yellow, yellow-green, green, light blue, blue, purple, and white. Combine the colors a bit mismatched, avoiding an overly tidy palette. Scatter confetti, stars, leaves, flowers, and small motifs randomly around to create a lively, festive atmosphere. Overall, a rough, free, and poppy heta-uma expression that is unskilled but charming. Don't tidy it into a children's-book look, a nursery-teaching-material look, or a professional polished look. Don't draw it explanatorily; prioritize momentum and an airy, loose feel. No realism, no black main lines, no neat outlines, no overly clean composition, no 3D, no anime style, no vector feel.