1. All new members must draw 3 tryout pictures to the best of their abilities.

Why This Rule Exists:
This is an advanced oekaki, so a certain level of skill is expected of all the accepted members. It's taken 2 years for everyone to decide that the minimum amount of images to show a person's skill level is 3.
There are also two other oekakis to choose to draw in: S-R Normal Oekaki, and Sutaro Sketcher Oekaki, both containing less-strict standards for those who aren't accepted into SROA.