An artist statement is optional, at the discretion of the artist to deem necessary. Perhaps you believe your art should be obvious enough to not require an explanation. Art is interpretative and thus susceptible to misinterpretation. An artist's statement would offer further support in clarifying the intention of a piece should it's integrity ever be called into question.

Despite the law of entropy, due to the nature of chaos going both ways, anything goes. It's permissible that relatively orderly stable laws could form and compound upon themselves (evolve).

Our bodies have evolved to sense pain in greater detail than pleasure, same for remembering painful events more in order to prevent them from recurring. So it's easier to imagine an ever-increasing worst case scenario (hell) than an ever increasing best case scenario (heaven).

Heaven and hell on earth are possible, relatively speaking, but the earth based heaven would likely fall short of most definitions of utopia.

There is a proposed psychological reason for the absence of detailed depictions of heaven. "For what is the bliss of that paradise? Perhaps we might have guessed that already, but it is better for it to be expressly described for us by an authority we cannot underestimate in such matters, Thomas Aquinas, the great teacher and saint: "In the kingdom of heaven" he says as gently as a lamb, "the blessed will see the punishment of the damned, so that they will derive all the more pleasure from their heavenly bliss.” - Nietzsche

Your conclusions seem correct based upon your selected variables. But I suspect there's more possibilities than just A, B & C. For example C could lead to a B. As an extension of C, say there's a god who wants to exist and so constitutes a universe to sustain it's desire to exist. Then from there chooses to create an additional universe that has to exist (at least as long as a god continues to enforce it).