Heavily modified this design. Work rounds 1-2 as written. Rounds 3-4 simple dc in each st around instead of increasing by 1st. Skip to instructions for row 6 leaving a 2-3 st gap for the foot. Stop at row 8 and sl st the heel shut. I completely changed the cuff, so see my pattern notes below.
Cuff: attach yarn at the heel. Sc in each st around in same color as foot. sl st through the first st of the round, switching to second color. 3dc in each st around with second color to create the ruffle cuff.
UPDATE: Scarlett looks adorable in her springtime set! (Too bad its fall!)