Amy, looking at the difference between Antonia and digital Amy, the hip is what makes Antonia look like her legs are longer.
Antonia is built more like my younger sister, more leg, less hip and digital Amy is more like me, more hip and less leg...lol.
Antonia's shins are longer too like my sister, mine are short.
Digital Amy has longer arms than Antonia though.

With V4 I usually scale down the abdomen when posing arms above her head and it works.
With Antonia there is no need to do that.

Let me introduce you to my multiple personalities. :)
     BluEcho...Faery_Light...Faery_Souls.