Alright man, I'm gonna be honest this one didn't quite land for me.
Going to jump straight into the breakdown here, so Spoilers from this point forward.
Implementation of Theme:
I can see it. Couple different ways actually. We have Alex and John being lights for each other in the face of an apocalypse, as well as their admission into heaven being a light in the darkness of death itself. There's other more literal things you could look at like the explosions in the sky and such, but the metaphorical implementations feel more impactful to me. It's fine either way.
Story:
The biggest issue for me is that I know nothing about these characters. Basically the only personality trait we see from either one of them is loving each other, which is a fine place to start, but there needs to be more than that to make a really compelling narrative. Do these guys have friends? Family? Anyone else that they'll miss or will miss them when they're admitted to their own private slice of heaven? Was there anything that they enjoyed, or were afraid of missing out on when the world ended besides just getting married? This story could probably benefit from starting a day or two earlier and showing some day-to-day interactions (that actually give insight into their characters, not just, like, scenes of them snuggling) to get the reader more invested in the cataclysm to come.
The commentary from Death also felt a bit preachy and not particularly insightful. Like, yes, the world sucks, and I think there are a lot of us who are very acutely aware of that right now, but monologuing about it directly just came off kind of... trite.
This is drifting further from the narrative, but I also just do not believe that the freeways were totally devoid of traffic. Like these two could not have been the only ones desperately trying to reach their loved ones.
Presentation:
Presentation was fine. No issues with the stock sprites obviously and the backgrounds and music did their jobs. Very few if any glaring typos or other language errors which is always fantastic to see. Generally nothing here is done poorly, but there's not much that particularly stands out either.
Creativity:
It's a bit basic, to be honest. "Love at the end of the world" isn't particularly original on its own (there is some stiff competition built around that premise just in this jam) and this entry didn't quite have the characters or narrative complexity to elevate it.
I know this review was a little more on the critical side, but please don't take any of it the wrong way - I only intend to be constructive here. I think it's great you're finishing projects and getting stuff out there, and I hope you stick with it and keep perfecting your craft.