Michael those dynamics certainly bring the Valse to life. It lends itself to this with the chordal parts contrasting against the more melodic arpeggios.
Here are my initial submissions. I have forgone the comfort of my usual arm chair for a more upright position.
I see from viewing this that I am also leaning my guitar back to see the strings
You can see how I struggle with the last one. I can do it if I spend ages getting my hand into position.
Carcassi Valse Opus 59 (this is the last take of three but they are all much of a muchness I get tenser as the piece progresses in all of them)
I've also recorded the Sor exercise. There's a couple of slips in this
but I think it has potential.