I think it needs to emphasise how important RAISING YOUR ARMS is when looking at your breast too. I see from that infographic that the arms are raised, but it doesn’t make it clear that dimples and distortions are easier to see when both arms are above your head.
So, in addition to ‘Coppafeel’ we should have ‘hands up!’. See what I did there? Almost a slogan, I must be alert, tonight.