Thank you! Making me feel better about running out of time. :)
The vocals were just my singing in all of it. The strings were my talharpa and my cello. For the deep bass strings I just pitched my cello down one and two octaves simultaneously for that last track.
I really appreciate your thoughtful feedback! Thank you again.
Edit - listening again - those bowed strings are me bowing the talharpa strings open. It makes me think I should make a proper viola da gamba, which is sort of like a cello but with frets, so the strings sound more open. When I made my talharpa, I made it have holes shaped like a viola da gamba, and even put in bracing to simulate the walls of the viol so it would sound more like a viol. It sounds super viol-like and hence it's giving me that itch to make another instrument. Those are gut strings that make that raspy sound.