I think I’ve pinpointed something that bugs me about Hannah’s cover. The combination of thumbhook and spread legs makes the pose awkward.
Irina had a similar post last year with one leg crossed in front of the other, and it worked.
Full disclosure, I love legs together anyway. But in this case it's a specific improvement. For one thing, the hips look curvier when the legs are together. And for another, if the idea is to tease the viewer with the prospect that the bottoms are about to slip off, that’s not going to happen if the legs are apart.
So Hannah’s pose looks less like a striptease and more like “Let’s see how far I can inch these down before we get kicked off this berry farm.”