Surrealism refers to a style that can show all muscle textures and fiber textures in great detail, and it looks like a photo. In fact, the skin and hair in the picture are not very detailed, the traces on the tone are still obvious, the light and shadow are a bit messy, and the volume and shape are not well expressed. At most, it can only be regarded as an ordinary realistic sketch. When drawing hair, it is generally to find the approximate position of light and shadow first, to make a big tone first, and then to refine and aggravate the dark part and raise the bright part. Draw along the direction of hair when napping, reflecting the texture of hair.