You've done an amazing job for being self taught!  Those songs aren't in any way easy!

Since I don't know how to praise people properly, I'll put forward some criticisms, which hopefully help you out.  I'm only really familiar with the Arabesque, so I'll focus on that:

00:19:
it's marked as 'rit' followed by 'a tempo', not a pause, so make sure that your left hand doesn't stop here; you do it quite well at 03:25, so I'd follow that example

00:45:
starting from here, be careful that the right hand quaver pair is not meant to line up with the left hand triplets.  Unlike jazz, the quavers need to be played with even duration.  For example, in bar 19, the quaver pair is G, B; the G should be played with the B in the left hand, and the B in the right hand should be played shortly after the E in the left, NOT at the same time as the C is played in the left hand.  If you're having trouble, try playing the right hand by itself and it should be easier to tell if you're playing the quavers evenly or not.
Unfortunately, you've done this a number of times throughout the song, so it may be a hard habit to break out of.

01:06:
don't pause here :)

Overall:
- you miss/skip a note here and there in your right hand triplets - perhaps practice them a bit more slowly to make sure you're sounding every note
- again, not sure if this is a limitation of the recording, but I'd work on your dynamics more; this piece has quite the range, so it needs to be expressed
- I'm not a fan of rubato, but I'd probably add more than you have in there.  Debussy is quite expressive after all.

Again great job on all of that - I can't imagine how long it took you to get so far...

I've played the Arabesque 1 somewhat, so I have a general idea of what it's meant to be like.
I've always taken lessons though, so good job on doing this all alone!  Considering the effort you put in, I'm sure you'll produce something epic pretty soon :)