at the risk of sending you boss-eyed, if you’re worried about the background being too faint (do i mean feint? zut alors) could you add extra dots of the appropriate colour just to the edges of your venn-type circles, in order to further define them with slightly bolder outlines?

i am simply staggered by the camera and clear fineliner pen. once again, wow-and-indeed-ser. runners-up have to be the eraser and set-square. you have dexterous fingers and no mistake.