Okay, I've played for a little while now and I think I've done everything that's present in the project? There doesn't seem to be anything after taking Alls to the train station, but please correct me if I'm wrong.
- There are a fair few passability and tile errors: you can walk onto the higher ground outside Ali's house, and there's a blank tile in the way at the T junction in the map to the south just before the vendors.
- The maps are *very* busy, to the point where important things are difficult to see. I completely missed the well because it didn't look any different from its surroundings, and there's an identical tile just above it which doesn't do anything so I never thought to try interacting with it.
- There's at least one quest error: when it says to plant Lily Weed, it says [61] instead.
- The dialogue with Alls feels really stilted, and Ali's mum just throwing out a big long (German?) phrase with no explanation or context was a bit jarring.
- A lot of spelling and grammar mistakes, but you've already said you'll be working on those. I highly recommend trying to get a dedicated proofreader for your script if you continue working on this.
- The menu for selecting seeds is incredibly tedious, especially because it shows a plant whether you have the seed for it or not. I would take advantage of conditional choices to only show a plant if you possess the seed.
- After taking Alls to the train station, I assume he's no longer with me but he's still in the party. I made a Star Potion like he said, but there doesn't seem to be anyone to bring it to.
- Minor "logic" nitpick: if Magic Water is freely available from the well outside Ali's house, why on earth would anyone spend 300 Ebony to buy it from the vendor?
It's a solid start to a project overall, if not a little rough around the edges. But you've done a good job of demonstrating what MZ is capable of.