Wow! This is really cool, impressive to be done in just 1 week! The art is amazing, really well done. I like the concept and atmosphere of the game it is great and the art and audio tie it all together. I wish there was more to do at the town, you have a really cool dialogue system but unless I missed it you can't interact with the npcs that much, it felt like this game could have a Stardew valley style character system with quests to get certain fish for people. I liked the fishing mechanic but I would make the hook go down by itself all the time to make it a bit more difficult or maybe have a difficulty setting. The boat movement on the waves was cool but it sometimes felt a bit unnatural. Also if there is free inventory space I wish when you fished an item it was automatically placed in the first free spot.
Overall really impressive. Well done!