I listened to your Bortkiewicz yesterday and it is VERY well played, especially the first half. I found not very consistent the tempo relationships between the different sections (this is just my taste) and a bit labored the RH double note work in the "Andante poco moto". But that's really minor nitpicking, you have totally pinned down the mood of this piece. Btw, to me this set tastes more Lisztian than the usual Bortkiewicz (even in some titles).
Thanks, Alfonso. I don't know ANY of the other pieces in the set, so I can't say what they taste like to me. (But if there is some chocolate in there, then I'll have to look at them....haha)