I’ve started Vortex #3. Here’s a possible cover:

I’ve been looking at classic Jim Starlin mind trips for inspiration. Like Page 52 from the collection The Life and Death of Captain Marvel:

This page is from #28 of Captain Marvel. I got this scan from this blog post.

Here’s that Starlin page with Frank Santoro’s golden section diagram:

Look at how all of the lines converge in those two light blue/white panels in the center. And that center diamond perfectly frames the skull! Frank’s made me a believer!