Not a piece I'm very familiar with (have never played it myself though I think I heard Sofronitsky (?) on it some time ago), but what a treasure! Scriabin always seems to present such incredible contrasts of passion and intimacy.
Overall, I think you play this very convincingly. It sounds more finished to my ears than the Rachmaninoff, and it certainly must be no mean feat with your left hand having to do all the work
Some very well-thought-out dynamic contrasts and rubati. A few of the faster runs and trills perhaps sound slightly awkward to me, and the pedalling a bit lush, but I know how difficult that must be with the balance in only one hand. Also a few places where I could see what you trying to do rubatowise but it sounded slightly more like a rhythmic pause or hiccup to me, but that's all pretty minor and I know we have our different opinions about that. The overall effect was quite solid to my ears for what you were attempting to do.
I too found the recording too distant and had to turn the volume way up on the computer speakers and even my Mac itself (which I rarely need to do), and it was still pretty quiet. Could it be partly that you played with the lid entirely closed as you say in your opening statement?
Anyway I very much enjoyed this. Perhaps even more so with my late Friday night inebriation