Here is one more Roaring photo of Milly.

This one is more mellow and less threatening.

I think it depends on the cat, Milly yawns a lot and it has been easier to get photos of her yawning, I couldn't find any photos of Izzy yawning and I don't ever remember catching a good one of my RB Samantha. It may also be that I have a better camera now, so many times I have just missed a great photo, some yawns are pretty quick!