Concept Art 32: Adam Kadmon pt 3 (Patreon)

Finally, the flying object in the Ancestral murals of the end of the world is revealed. As you read in the pic, this form is the world tree so you can imagine how big the thing is, this boss fight is supposed to be on a big scale, either being on top of the Nephilim or maybe Asher using Brugmansia or Iblis.

The eyes on the Tree are the Sephirotic cores since this form represents the tree of life in the Jewish Kabbalah.

Once you defeat this form you enter the tree, its insides being the final mini dungeon where you have to destroy the sephirotic cores to open the doors to Adam's Chamber where the final boss fight awaits.