Our drawing group is making outline studies, and I want to describe the head before adding eyes or shading. I keep noticing the jaw first, which makes it difficult to judge the overall outline without jumping to a label. I have been looking for a reference on square face shape to help frame the discussion. My aim is to write down the proportions I can actually see, then decide whether a category helps explain them. Would it make sense to trace the forehead, cheekbones and jaw separately, then compare their widths on the same sheet? Some reference pictures hide the sides of the forehead under hair, which leaves gaps that I do not want to invent. My plan is to give everyone the same outline worksheet and compare observations before starting the more detailed sketches. I want the categories to support careful looking, while leaving room for outlines that combine several different visible features. What would you ask beginners to observe first if the goal were a useful drawing reference rather than a definitive classification?