I was unfamiliar with these pieces, so I followed along with score for the Berceuse Heroique (the Elegie doesn't even appear in my either of my two Dover editions of Debussy's incidental pieces
Overall, I think you play these well. You seemed quite diligent in following Debussy's dynamic and directional markings in the Berceuse (interesting BTW for me to think of the concept of a Berceuse "Heroique"; to me it seems almost an oxymoron
), which I think is important in French music. Nice execution of the triplets and dotted rhythm figure/I like the crispness of the repeated notes. It maybe could be a bit quieter in a few of the p/pp sections. Nice atmospheric pedalling in general.
The Elegie I find less interesting as a piece; to my ears it has rather a disjointed, barren sound. I'm not very familiar with late Debussy, but late Scriabin seems also to have this slightly rambling quality in which the phrases don't really quite hang together or go anywhere. I guess those be the beginnings of modernity in music (never my predilection
). You seem to handle it all in an eerie, trancelike way though, which I think is convincing.
Overall, I think you have a good sense of how to to capture the sonorites of the French master.