From this, he developed the idea of building up a picture from pressed leaves. Yin's first work was a collage of butterflies made of colorful leaves embellished with flowers, and grass, and accompanied by a love poem.
於是挑幾片色彩鮮豔的葉子黏貼成蝴蝶，加點花草，寫上兩句情詩，就完成了殷登國第一張用以傳情的刻葉畫作品。