David,
This is such a lovely, soaring prelude. The Op. 11 set is a particular favorite of mine among Scriabin's piano output ( I had actually recorded the first nine a while back, but you have beaten me to this one

).
There are some very sensitively phrased lines in your playing, and the pedalling seems clearly applied for the most part. My only real substantive criticism would be that the left hand could be a little more even and less notey in places. Certain notes seem to jut out a bit, particularly in the lower bass (the piano could be contributing too of course; that can be a tricky register). A few other specifics:
1. In the reprise of the theme in bar 8, the pause seems a bit protracted, more of a tenuto than a ritard. Although it's not marked, I think a slight ritard is certainly in order, but yours seems too much and breaks the flow of the line a bit.
2. The crescendo in the climax is observed, but maybe there could be a bit more drama and fire in the ascent (just a slight accelerando?).
3. I thought I heard a misreading or two in the bass in the final reprise of the theme around 26-27.
Just some minor nits and my personal take on it though. Overall I thought you sang the treble quite convincingly, which seems really the point of this magical song without words. I very much enjoyed listening.
Joe