There were no photos of JBR in rigor available to the public, at least not that I'm aware of.
I was referring to the depiction of her with her arms straight and over her head. That is not representative of decorticate or decerebrate posturing.
The only photo I have seen is the one of her lying on the living room rug with bagged hands. I posted the link before. Her arms are bent at the elbow. The image (drawing) of JB we have all seen was probably drawn from description, not by someone who was actually looking at her because NO crime scene photos or drawings were ever done of her as she lay on the wineceller floor. Photos were not taken till she was brought up and laid on the living room rug.
In other photos, her hands and arms are shown on the autopsy table before removal of clothing. In those photos, taken more than 30 hours after death, her arms, hands and fingers are flaccid again.