Yes, it's the one and only cel in my collection. I got it at Fanime 2001. I will never ever sell it so don't even ask. If you do, I shall laugh at you. Bwahahaha!
Here is the pencil sketch.
And here is the finished product.
Where is it in the anime?
Episode 7 (First Aired: 11/27/2000)
Kagome has just pulled out Tessaiga. Sesshoumaru has Inuyasha on the
ground and is momentarily distracted by Kagome with the sword and eases up
on Inuyasha. Inuyasha says, "Your eyes should be over here," and makes
a swipe at him with his claws.