Love the art on this. I just recently played Turnip boy commits tax evasion and I know that is pixel art but this reminds me of that in character design, concept and control. It's so cute, i love leafy :) .
Maybe the camera would benefit from being zoomed out a bit more to see more of the screen, I feel like while exploring big portions of the screen are just all green with grass but no discernable shapes, NPCS. There are some odd collision moments with the UI(to do list and right UI squares) overlapping some parts of the environment and vice versa. There was a section around the mailbox that seemed to make leafy disappear and the bottom inventory box but I could still control him, just a minor visual bug but also might just be my computer. I think it also would be nice to have some prompts appear on screen when you pick up the items like the letter, maybe have a similarly designed window appear that says "I found invitations! I should find a mailbox."
Overall, really cozy and I love it, great job