Wonderful to hear the "Russian" Skazka. (Funny title, they're all pretty Russian!) Most of the notes are there; I won't niggle about them, except at 2:56 there's a note in the melody played a jarring half-step high. Presumably it bites at your ear as much as it does mine? My rhythmic sense detects a noticeable tempo shift at 1:44; that section with the alternating seconds and thirds is hard to enunciate quickly, but do you have in mind to speed it up? Otherwise very nicely played and IMO close to being publishable. When I eventually record this someday, I may phrase it a little differently.
Will be great to have more Medtner up. I've got a friend working on the Op. 20 No. 1 and the Op. 11 No. 2 and we might hope for recordings of him playing those at some point. FYI, the Medtner page needs a "Recordings" section added, too.
I'm familiar with a few other Liadov pieces but not this one. Sounds great!