I really enjoy the concept here, as well as the art and detailed descriptions. On my computer (Mac, viewing in browser), I was not able to click on the buttons for form, realm, etc. - they disappeared when clicked and did not return. I also had all buttons become unclickable during the 3rd chance to upgrade.
I'm very curious how the judgment plays out. The abstract development of the souls in front of me was very interesting and allowed me to start creating a story, which I enjoyed. I hope you keep developing this!