Tenshi no Tamago, Inaka Isha Recommendations
Same starkness of scene and incredible music in both. If Inaka Isha were Noh, Angel's Egg would be Kabuki produced by Yoshitaka Amano.
Before trusting this recommendation, One should be noted that this recommendation is based on my subjective interpretation of these two pieces of abstract work. So, it may not be works for you if your interpretation about the works doesn't allign with mine at all.
Comparing Inaka Isha with Tenshi no Tamago is like comparing physics with mathematics. While the nature of both works express the similar idea, one of them can be said having a higher abstraction level than the other, judged based on their visual presentation. Both anime express the inner conflict of the respective authors related to different ideas.