I found the stock photo on imgur and experimented with the two different shapes. At first, I didn’t have noFill() for the shapes, so the circle half looked funny because there were white circles all over the place. The diamond side looked better because everything was square. I ended up putting in the noFill(), so both halves look much more similar once enough of the shapes have drawn.
Image after the program has run for a few seconds
Image after the program runs for awhile