1. Choose the right supplies: it is choose the picture that you want to draw a shade, you should choose the picture that easy to shade and Make sure that your subject is still, and that you have plenty of time to get a good outline of it.
2. Create a line drawing of your picture: Create a line drawing of your picture: sketch out the outline of your picture and then put in both the cast shadow and the shadow line. You should sketch lightly and don't make it too dark.
3. Locate your light source: find to really reflection light of your picture then You can drawing outline of reflection lightly already will be shading away from your light source; the brightest (lightest) areas will be those closest to the light, and the darkest areas will be the further away.
4. Create a preliminary shading of your drawing: preliminary you should shade near your outline or lines of your picture do it lightly before and start from darker become to gray and white.
5. Add more layers of shading: add a darker gradually, each time laying a thin layer of shade. The contrast between light areas and dark areas should become more clear and distinct.
6. Blend shaded areas: add the blend smooth of your shaded of a picture, use a blending stump. This smooth out any rough edges and makes the shading more gradual and realistic. Hold the blending stump just like a pencil. Press lightly at first, until you determine how much blending you want to do. You can also use your fingertips or pieces of paper then use an eraser to brighten up spots that might have been accidentally blended. This could be around the outline of shapes or in areas where there is direct light