植物的结构白板动画

Hand-drawn diagram of one whole flowering plant standing in the ground, with the soil cut away below a straight ground line so the roots show: underground, a branching root system with one main root and thin side roots; above ground, one straight green stem; exactly four green leaves attached to the stem, two on each side; at the very top, one open flower with bright petals and a yellow centre. Only the soil, the roots, the stem, the four leaves and the one flower. Nothing else in the picture, plenty of empty space around the plant. Coloured pencil and watercolour marker, clean black ink outlines, warm off-white paper, no text.