I am going to offer my 2 cents on just one of your submissions, that being "Lo, Nous Marchons Sur Un Etroit Chemin". Ok, it will more likely be at least 10 cents by the time I'm finished, but hopefully money well spent
1) You are doing rest strokes with your thumb. That is a major accomplishment. Of the four possible strokes (free and rest, both for fingers and thumb) this is the most difficult to master. You are also switching to a finger rest stroke when you get to the third string, which is not an easy transition. That is the way the piece is written and kudos to you for a valiant effort!
2) You already know about your dancing left hand to which I will add that your index finger is standing at attention throughout. I guess it figures because he isn't needed in this piece he can take a rest, but you must tell him otherwise. All fingers should be in a ready position at all times for otherwise they are learning that it is OK to be anywhere they feel like. To calm your hand and train the fingers to be "at the ready" I strongly recommend starting each lesson with a warmup exercise of the chromatic scale. Start at just the first string (e,f,f#,g,g#,g,f#,f,e repeating several times) While ascending hold each finger down and try to hit every note with the tip of your applicable finger just back of the fret with just enough pressure to sound the note perfectly. When descending lift the no-longer-needed finger just as you strike the string but keep it within half an inch of the string always in the ready position. Go as slow as needed to to maintain correct finger placement. When you can do the first string perfectly for 3 times at a reasonable pace introduce the second string so you are now playing b through G# and back again leaving every finger in place until it is needed somewhere else. I guarantee that this will improve your left hand dramatically. Just tell those pesky fingers that you are in charge.
3) In the music there is a :‖ symbol at the end of the fifth measure. It is telling you to play those first 5 bars again before proceeding.
4) When you play the rest stroke, be it with the thumb or the fingers, your hand should be still. The movement should be coming from the thumb (in this piece) or the finger (in other pieces) Try placing the fingers on the first, second and third strings when doing the stroke. Your thumb rest stroke movement is about 60% thumb and 40% hand. Now...to change from rest stroke thumb to rest stroke finger your hand will need to change position, and you might even try to sound that third string A with comparable strength to your thumb strokes but that is a minor point.
5) It could be the camera angle, but I don't think so...you should review your seating position and there is too much written on this which is easy to find for me to suggest specifics other than a correct position will put the head of your guitar at roughly the same level as your eyes. I think you will find that the head of your guitar is about 8 inches too low, at least for classical music. It will be extremely difficult to correct hand positions and keep them steady if your basic sitting position is wrong, so this should arguably have been my first point and the first thing you should attempt to correct.
For what it is worth, after viewing your submissions in earlier lessons I see definite progress so good for you, but before you get too far you really need to correct your basic seating and hand positions, imho. Good luck and keep up the good work.
If you don't know what I mean by the chromatic scale exercise I will post a video for you.
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"The biggest room in the world is the room for improvement." — unknown