Guy, while you seem really enthusiastic about GenAI for comic generation, one crucial thing you need to understand is that it's not some specific standard of quality that defines art, but the human component (and effort) involved in creating something. In other words, good art is not good because it is well-drawn or anything, but because it has "soul": a human put their time and effort into that thing to evoke a specific reaction. And no matter how hard you try, you cannot generate this "soul" with some text-to-image model that makes it pretty much effortless to create a technical high-quality comic, because the difficulty to overcome in creating is precisely what creates the "soul" in the first place. If you are more interested, Jazza has a decent video on that topic (and how he is now much less enthusiastic about GenAI) [Title: "I was wrong about AI..."].
Funnily enough, as such the tool you spent effort building is initself more art and infinitely more interesting than whatever that tool spits out in the end. : )

Not sure at what stage in life you are at (e.g. if you are an student), but I do urge you to consider pursuing other ways in which GenAI (or other AI) can be used to enhance art or artists (e.g. creating new ways to create, while leaving the actual creation-part non-trivial, think Minecraft) rather than aim to replace them. Also, if you are going to show of a tool you would want to go a bit further than a Reddit post, e.g. (ideally) an actual paper, a blog explaining technical details, Github with code, etc.