I’ve uploaded 2 new videos, both teach you how to draw the branches from the subclavian artery. In one version (https://youtu.be/pjm7lPiK-3A), I have added pictures to show where the arteries take blood to. In the alternate version (https://youtu.be/MjuID9326u4), I have removed the pictures and I only show the drawing on the whiteboard. I hope you find them helpful. Good Luck!