Ok, so I found the merchant, but didn't have a need to use it. I played 8 days, and the only different thing I saw was the red day. I also saw a black animated shape. I noticed there's a second planting area, but the first one being quite fast, I had no use for the second one. Besides that, some of my crops were dying and I kept watering them hoping this is the reason.
Luckily, I understood how the hotbar worked and had quite a fun time. One thing that's really annoying is that you need to have the item you pick up selected if you want to pick it up. Thought it was a bug because I just could not pick some up in the beginning.
I also noticed the realistic open eye, but had no idea if I was doing well or not. Maybe well, except for the day before the red one. I like the end day bell and overall sounds, keeps you in the game. I always was alerted and working because I had no idea what was really my objective (like, do I need to be faster, unlock anything?).
Oh, also, thank you for hiding that second watering can!