I generated this with Dalle3 in ChatGPT to start to get an idea of how the various depictions of Exodus could be reconciled. Allegedly, Richard Garriott wanted to have a proper demonic Exodus final boss in Ultima III, but they simply did not have room for the graphics, leading to the computer version, which repurposes graphics already existing in the game. It's an example of how a limitation led to some really interesting concepts, and the inspiration that the "true form of Exodus" may be somewhere in between. Or maybe it has many forms.
If a concept like this were used in some form in my Age Of Singularity Ultima VI fan recreation project, the face would be be made more like the demon cover of Exodus, with maybe more of a splash of stained glass window colors. I hope you like it and that it gives you inspiration!
Someone noted how it was bad because it was AI, as evidenced by the bad perspective and vanishing lines. Then I explained this is because I combined two generated images whose perspectives did not quite match; the bad skill in this equation was mine, not the generative tool's. The final hand-crafted 3d model I make will be legit, of course.
Above is another variant that has some interesting ideas in it. The colorful dusk light contrasting with the demonic computer, and the more horns-ish features. And the big room could allow for the Earth Serpent to be a boss battle, for example.
Here's the original fb UDIC post.