Each of these ladies has legit high arches. Fair Adam, you clearly know what's up.
A lot of producers tout their models arches but fall way short in comparison to the ladies in these pics.
On a side note: there are subtle differences in arches that I suspect only an arch guy would appreciate.
Some women like Casey and Mona Lisa have "perma" high arches. Even when their feet are relaxed their arches are banging.
On the other hand a models like Jamie, or Christy, also have banging arches. However you can only really tell when they flex them for you.
Both are great, but I'm always a little more impressed by women with not so obvious high arches. It's always a surprise when they flex them for you and BAM - she shows you a huge arch when you didn't expect it. Love that.