In this image I am practicing drawing textures and pattern on a wood box, a basket and a ceramic mug. A key aspect of being successful is having different values of dark and light to highlight each object. For example, the basket in the middle of the group, needs to stay lighter in value than the mug that is behind it. Along with the shadow on the left side of the basket is darker than the wood box. When working with a drawing marker you need to start out with light values and add the darker values as you go.