2. Draw the dark part of the petal fold and determine a light source. The light comes from the left.
3. Continue to draw the dark part, draw the projection of the dark part where the petals overlap, and refine the petal folds.
4. Draw the light and shade of the leaves, and the leaves behind are light in color.
5. The leaves are dark and covered with hard strokes.
6. Petals pull down the edge, similar to occlusion. A little light blue is added to the back leaf near the root to lengthen the distance, and a layer of light color is added to the illuminated part of the bud.
7. Draw a line along the direction of the flower.
8. Hard pen highlights, use highlights to open the positive and negative relationship of leaves, and add a drop of water to enrich it.