This exercise is designed to build upon the previous assignment; in developing one’s skills in creating depth and tone in a sketch, and thus refining and enhancing the ability to produce an architectural sketch that is legible. 

Based on the selected image, produce four variations of a tonal value sketch. You can vary the sketches in the hatching type and medium. Examples of hatching types include stippling, cross-hatching, one-directional (hatching) and scribbling. You may choose to use are pen, pencil & color pencil or mixed media.