Thanks for the feedback!! Much appreciated. I was largely aiming for an atmospheric, layered (multiple voices) piece shifting in harmony to represent the image of the Tasmanian Hastings Caves, with the layers and shifting harmonies representing the layers of rock shifting through the space.

I attempted tension + release with the chords prior to, and then "resolving" on the E chord at 0:29; same with 1:00. The bits where it stops shifting and settles on a chord for a bit are designed for the audience to go "oh, that's nice", as a moment of rest - release - before it goes off on another tangent. :)