Hello Peter,
A masterful work which integrates many unique and lovely textures, as well as colorful dissonances. I especially liked the string quartet variation, which I thought was quite original of you to include. Although the piece remains in e minor for much of its duration(apart from the later variations), I feel there are so many distinguishing features in the compositional process that shift the focus away from modulation, and I must say that this is not easy to do(as a composer who relies too much on modulation). With this, you are building a really interesting, modal harmonic language. I also admire the way you've woven the different themes together to create a rich, dense texture. I do think it would be a nice contrast if we could have a clear melodic line/homophonic idea in order to introduce a specific theme.
Hey.. its just an idea. But I am also surprised you're not using microtones in this piece because to me, its probably a part of your style at this point. 🥴