I love the art here, the color palette and the textures are so good. Especially for a seaside town which they always have that "crunch" feel to them, haha. I liked the expressions of our main protag and you're setting up for a fun mystery here. It's always a good sign that I wanted more when I got to the end!
I got a little stuck on the chase sequences. Like others said I really wanted a save there. I feel like I'll know the passcode to that register for the rest of my life lol. The monster was creepy though, I liked the design. I think the conflicting instructions of "hide" when it felt like (SPOILERS) in reality the solution was to circle around is tricky. I get the inclination to want to mislead the player so they feel panicked but also I REALLY tried to find somewhere I could mechanically hide and when I realized that just wasn't working I then tried other stuff.
Also it took me ages to figure out fish bait and fish hooks were connected and only because of the color of the text haha. But that's probably just a me issue, I'm not the best at those sorts of puzzles. Still a very well thought out puzzle and it fit into the theme.
Really liked what you have here, hope to see the rest!! Really really loved the art style especially. And I don't trust good ol' gramps further than I can throw him >:/ but maybe I'm being unfair. Dude feels sus. Really good job yall!