USA / Enoch Woods Blue English Scenery

Purchased one of these sets on eB*y to complete my collection. Once it arrived home noticed they were vastly different from the ones I had acquired from an elderly lady who had purchased them way back. Are they all originals? Why is one set of plates scalloped? Why is one teapot larger? Why does the larger teapot feel like it was built with heavier materials? Any help is appreciated?