All right. It took me a while to get to this, but let me see if I can respond to the most important bits.
Orqwith is a transcendent plane of existence? This is a pretty far-fetched interpretation, to say the least.
In Doom Patrol volume 2, the black book was a meta-fictional text describing memetic theory, which is the philosophy that memes (cultural ideas and behaviors) spread and evolve throughout societies in the same way genes spread biological traits. The world-city of Orqwith mentioned inside the book, which is an intersecting plane neighboring earth's universe, embodied memetic theory in a warped way: parasitic information that would consume the rest of existence.
Notice how in the last panels, the Doom Patrol is questioning if the Black Book is real, or not? They conclude that the book is the gateway between reality and unreality, and the world of Orqwith escaped fiction to consume its own creators. That's why in this issue and the one before it, different people around the world witnessed fictional entities coming to life and devouring people into space-timeless husks of themselves.
As for the "Orqwith has no boundaries" statement, that's not describing anything like "the multiversedoesn't limit it since it transcends everything." It was just meant to detail how Orqwith expands infinitely in all directions.
So yeah... seeing as Orqwith was stated to be an unreality invading the real world, and exist as fundamentally less complex than the real world due to its unreal nature (which means the rest of existence has literal R>F over it), and becoming "one with it" is equivalent to becoming a space-timeless existence, it's more likely to be
zero-dimensional or
tier 11 than outerverse level.
The first thing I wanted to point out is that
the painting was constructed by a random dedicated artist. Not that I like appealing to incredulity, but it's a little hard to believe that some random painting from some random DC human being depicted in less than several issues of an old storyline justifies a
High 1-B cosmology.
Secondly, I wanted to save this point (the largest flaw in the argument) for the end, but I might as well introduce it right now. This painting was never stated to encompass higher realities. It was stated to
extend downwards endlessly into deeper realities. It's not like the regular universe was depicted as another layer of the series of paintings either. The antagonist called the fifth horseman was described as rising through levels of the painting
into the main universe, with the main universe being
the "real world" which transcended the whole painting, and the city of Paris's realease from the painting being akin to getting vomited
back into reality. This means that even if we were to interpret levels of the painting as having a relationship of qualitative superiority towards each other, this painting is ultimately invalid as it's a
downwards hierarchy.
"How far down does this thing go?"
"How far down are we? How deep into the structure?"
"It's infinite. It goes down forever and..."
"It's rising through the levels torwards the real world."
"When the rider grows strong enough to break out of the painting and into the real world, it will extinguish everything."
"They're through into the Dada world! Our world!"
"We're all that stands between this thing and the world!"
"Are we out?" "Like pigs from a gun." "And Paris too?" "Vomited back into reality."
Think about it like this: the continuum hypothesis asserts that 2^Aleph-0=Aleph-1;
something raised to the power of infinity is a higher infinity. In other words, a hierarchy that qualifies for infinite higher levels of infinity would be like imposing [Infinity^Infinity^Infinity ad infinitum] on our 3 dimensional world. Since
the painting is quantitatively inferior to the universe however, the size of this hierarchy would be like multiplying our 3 dimensional world by the reciprocal of that: [1/∞^∞^∞ ad infinitum]. Once again, this is a literal
tier 11 structure being argued as
High 1-B/1-A.
Recursion of Universes:
Universes multiply according to the principle of
endless nesting dolls,
multiplying in the form of particles, representing a virtual universe for subsequent
Infinite recursion low 1-A
Recursive universes would need to multiple at a rate of Infinity^Infinity^Infinity... uncountably infinitely many times over to gain Low 1-A. The vast majority of "recursive timelines" and "infinitely expanding multiverses" we see in CRT's don't so much as qualify for an Infinity^Infinity quantity (to be specific, a Low 1-C number of timelines would typically require a timeline for each infinitesimal moment, or like I said, an expansion rate than can be understood as Infinity^Infinity).