Hi Artie,
First, thanks for sharing this.

Well after looking back and forth for five minutes I remembered that with Firefox if I hit f11 It goes full screen and I can see both pictures at the same time. Then there was dust on the screen.
Finally, I can see the difference. AN is better. The light and the eye. I like seeing the definition in the nostril too. (?? Is it a nostril on a bird??)

Take care,
Clive