For the raster engrave drawing, I edited the extra one I drew for Drawing #1 of my cat. The design looked a little barren without his black fur anyway!

For Drawing #3, I messed with the code until I got this interesting pattern:

In all honesty I’m not super math-oriented, so I’m just going to paste the for loop I used to get this. From my understanding it’s just drawing new ellipses with tiny widths and long lengths and rotating those weird ellipses in a funky way.

var numbr = 55;
for (i = 0; i < numbr; i++) // the "for loop" counts up
  {
    ellipse(i * 3, i*5, i/(numbr-i), i*(numbr-i));
    rotate(0.05);   
  }