Hi fnork,
This is a very fine performance of Ondine. I particularly liked your phrasing of the plaintive cantilena, your leggiero articulation, the fluidity (no pun intended) of your playing, and your shadings. You "spend" the long crescendos nicely too. Your playing truly captures Bertrand's poem of the rain, the water nymph's seductive pleadings, descriptions of her watery world, her tears of rejection, and the splash of droplets as she disappears. I enjoyed listening!
Have you ever watched/listened to Vlado Perlemuter's rendition on YouTube? As you know he studied the piece with Ravel. He never had a big technique actually, and when he did the video, he was already in his 90s, yet still acquitted himself quite well considering. You get a sense of history just watching him play the piece.
Thanks for posting. (I wish I could play it!)