Wow really fantastic entry. The art is overwhelmingly amazing. It's incredible that you managed to make something like this in the time allotted, really great work.
If I could offer critique, I don't see a lot related to the theme Keep it Alive? Afaik through playing you can't die/fail, and you just solve the puzzles to continue. There were mentions of other npc's fire's fading but they never explained how? Unless there was a timer (which I don't think there was?) or other way for your fire to fade? I may have missed something. But unless there wasn't, I don't know what aspect of it was to do with the theme.
When playing it as well, I also got the sense that this was something taken from a much larger idea and made to fit this theme. I don't know if that is true, but was just the impression I got. Again, a mixture through the lack of the theme coming through, but also because it felt like a small piece of a game taken randomly from a much larger whole that there was a lot of context missing.
Overall though it was definitely enjoyable.