DESCRIPTION
Collect some real life photos and artist's works with various breast sizes and do some sketch studies! What do you notice is different between large and small breasts? What's the same?
Varying the breast sizes of your OCs is a simple way to help visually distinguish them from eachother and can lead to lewd situations where they have to compare their size with each other...
Let us know if this is helpful or if you have any further questions about breast size!