Thanks a lot!! NONE of my recent drawings are larger that 5.5x6.5 inches (14x17 cm) which is the perfect compromise I found, which enables detail, and cuts time. Rule of thumb: 20% larger = 50% more time, etc. If it is a cropped pic, it's even smaller. About 3 inches from the center of the eyes to the bottom of the chin. I take at least 10 minutes or more just planning the size of the drawing, for I have learned the hard way HA!