I didn't use the 2 circle method. I made one as a test & didn't care for how lumpy they looked and all the extra fabric in the seam allowance didn't look good to me. I was too lazy to trim & clip it--that probably would have helped--and I was using denim & flannel so it was going to be bulky no matter what I did.
Mock or Faux means it isn't done with the traditional method of folding hundreds (or even thousands) of muslin squares and tacking the "curtains" over the "windows". My aunt made one entirely by hand, queen size. It took 2 years and the person she made it for paid $2,000. McDonald's pays much better!