In a way I'm glad the story didn't win because the draft was such an early one (though it was developed for a while) and even after submission I was thinking up new stuff I could add, like a name for part of a geological feature on Mars that is so newly discovered it hasn't been named yet. Also, since the story is in conversation with science fiction tropes and modern culture, it may very well be a better fit for a more scifi-focused outlet.
There are also decisions to make on how the story might be developed, like right now it's fairly short at 3K and leaves a lot to the imagination while hinting at some pretty significant details. 3K is probably around the sweet spot for many outlets in the 1K – 5K range and suits the philosophical/reality-bending nature of the story, but some speculative fiction mags want longer and more developed stories, especially on the more classical and worldbuilding-heavy ends by my sense of things.
But then again I'm pretty sure fans of rational, harder SF would hate my story anyway no matter how hard I go in on world construction, so my best bet is probably to keep it largely at its current length and form and then shop it around the hybrid, slipstream places after a couple rounds of reading and edits. Any editors who are also philosophy/religion majors might actually love it, that's how weird this thing gets xD