I may follow your lead and skip the video; it takes so much more time to deal with it, copy, trim, sync with a quality audio, etc. Anyway ...
At first I thought your Polyphonie was rather fast but I'm guessing you played it at the indicated tempo, whereas M. Delcamp did not ... and I followed his example. This is not the only instance where in his video the tempo he plays varies from the sheet music, but I had forgotten about that. I am a person who finds it quite difficult to just look at sheet music and know how it's supposed to sound. I really rely it being demonstrated. So I assume that your Polyphonie is correct for the indicated tempo, but I have a hard time envisioning what it would sound like. I suppose I could speed up my digital recorder's tempo while playing back m. Delcamp's version. It supposedly can go +/- 50% in tempo without changing pitch (but there is some distortion). Anyway I may fool with that later.
Your transitions on Carulli's arpeggios were really smooth. If there was one thing I might suggest, it is that I would like to hear the bass notes more prominently in the first half of the 4-note arpeggios. IMO they play a significant role in the second half of that 4-note arpeggio, and you rightly emphasize them there. But in the first half they are a little too quiet, I think.
Your treble string speed and crispness on Marazula are very, very good. I am in awe! But again the bass notes seemed weak. I'm not sure they're supposed to stand out as much on this one as the arpeggios but they still seemed like they were barely noticeable. Also, the in those tricky spots with sixteenth notes, you may have been ever so slightly slow on them. No - I've changed my mind. I think they are right. What I'm hearing is the 8th note that follows the two sixteenth notes, and it is appropriately of longer duration.
This highlights something that I recently realized in my own playing, a common mistake. With two sixteenth notes you really play 3 notes fast in succession, because there are two durational gaps in between three notes, and both of them are of 1/16 beat duration. I used to just play 2 quickly because that's how it seems (to the naive eye) on the sheet music. But you really have to go on to that third note quickly, as quick as 1/16th, regardless of the third note's duration. It just might last longer, but you have to start it quickly.
I still have to record Marazula. It's the toughest one for me by far. My others are done.