Thank you for your comments, Rick! I agree that recording of dynamics can be difficult. It also depends on the recording equipment and the mic placement. I find that when using my "better" recording gear and the lattice braced guitar, the dynamics in the recording are more noticeable. Although I must admit, that whenever you detect very little dynamic variation in my recordings, it's usually because there's very little in my playing to begin with. For some reason the dynamics is something I start paying attention to only after I have close-perfected the other aspects of learning the piece, and for that reason it is often neglected in my recordings.
Some comments on your recordings:
Fossa: This was very enjoyable to listen to! The indicated tempo makes this more of a technical exercise than an actual musical piece. I much more prefer listening to this at the tempo you have played it, and you played it with great expression! Something you should do though, is to mind the bass voice note durations, that is to mute the open bass strings as you play the 3rd beat bass notes.
Note that in measure 7 and 9 the last note of each beat should be open 1st string (should be played pima instead of pimi). In measure 8, I think you omitted the last beat altogether.
Sanz: Don't be discouraged by the apparent lack of repeating patterns with this piece. It just takes time for the muscle memory to develop. On your third time studying D05 you'll have no trouble at all with this piece, I promise you