I watched your videos and find them great!
Exercise number 6: nothing to comment here, it's perfect.
Exercise number 40: a minor comment here: sometimes sounds from 2 strings overlap, if I understood the exercise correctly damping and plucking should happen simultaneously.
Malaguena: very enjoyable, thanks! Clean, crisp, no unwanted sounds, even tempo. My only minor complain is about measure 50 at 0:57. Expected: G#, B, E. You seem to play: D#, B, E.
Other than that it's a VERY good job! +1