V4's abs and ribcage are part of the mesh.  I bent the abdomen of V4WM 65 degrees and it looks much like your render; there seems to be a bit less of a wrinkle at the umbillicus, but that could be the lighting.  V4's abdomen is folding at 65 degrees, so it's hard to compare.

The Poser Place Help Forum is here...

http://poserplace.phantom3d.net/forums/viewforum.php?f=51

----------------------------------------------------------------------------------------

The Wisdom of bagginsbill:

"Oh - the manual says that? I have never read the manual - this must be why."
“I could buy better software, but then I'd have to be an artist and what's the point of that?"
"The [R'osity Forum Search] 'Default' label should actually say 'Don't Find What I'm Looking For'".
bagginsbill's Free Stuff... https://web.archive.org/web/20201010171535/https://sites.google.com/site/bagginsbill/Home