"Most women don't have a ribcage shaped like an upside down cone."

I agree about the ribcage, and in fact I wont use any of the various meshes "as is".
And I also admit that (with more or less work) each of them could be morphed into something that might be recognizeable as a human being.

But if you generally like to work with Posette but are bothered by her knees and ellbows, I strongly recommend to try NEAena with the added LinLin joint parameters instead:

stahlratte