It's great to see how well this project turned out! It's especially impressive with the scope of the city level.
In terms of level design, the length of the levels could be extended to allow more time for the mechanics to breathe. Also, seeing the boat in the distance, made me want to explore the inside of it, and I think it was a missed opportunity.
Regardless, this is a huge step forward for getting something out that has a lot of polish, good work!