Hi! The jaw should be about 1/3 of the head. If you draw a cranial mass and divide it in two to find the brow level, adding one more part will help you locate the jawline. I recommend rewatching the first video of this course, where Michael explains really good how to find the jawline. Later in that video, when he discusses perspective, he draws a head that has a tilt angle very close to the photo you used as a reference. Maybe that would help. Also it seems there might be a misunderstanding about the purpose of the gesture of the cranial mass, the "circle." I had similar difficulties in the past. During the construction stage, the cranial mass isn't actually the head, as the head is not a sphere. The cranial mass is a form that suggests where the head should be. At this stage, it’s best not to attach ears, eyes, and nose to it, as this can prevent you from seeing it as a form (or blueprint) that you will later use to sculpt the features by adding and subtracting new forms.