The style and atmosphere of this game are cool! I love the hints at worldbuilding that tie in with this time mechanic, would have loved to see more of that. And the art and music are really pretty :)
I wish there was more consistency in the look of objects that are young vs old. I was usually just guessing whether an object could be aged or made younger, and I often ended up just spamming both clicks to see what worked. Having a visual language that matched the player's aging as well would have been nice.
One or two of the levels have satisfying puzzles, the level design is better early on, but most of the levels are less interesting and easy to brute force your way through by just guessing what you should age or de-age. For a game jam like this, it would have been better to have fewer levels that were more thoughtfully designed, and required a bit more careful thought from the player.