I loved the first cel from the instant I first saw it on ebay.com. I made sure I was the highest bidder. Its a perfect Akane pose!
This cel comes from the third season episode "Ukyo's Skirt! The Great Girly-Girl Gambit," about 14 minutes into the episode. After spending time with the suddenly girlish Ukyo, Ranma has been confronted by Ryoga, Kuno, Kodachi, and Akane... the cel is on screen for several seconds as Kodachi rants about Ukyo behind Akane.
The second cel is from the same scene, a couple of seconds earlier. I found it on ebay nearly two years after finding the first cel. The best thing is that the new cel also included the background for both, so I rescanned the first one to include the backdrop.