Grainstreet, a small village map.

[Larb]

It takes a not insignificant acreage to feed a household. It will vary a bit by soil quality, farming techniques, and what crops they are growing. And then you need to factor in the other things such as crop rotation/leaving fields fallow. And plots for other things (because you're not just eating a single crop). You can find tons of data for all of this online and it can be fun to read about it. So if anything, those fields are too small lol.

As for the map, it's good, I really like it.

[Daia Maps]

I'm glad you liked!

Maybe bigger, somewhat communal fields will make more sense. I'm thinking some homes will have a small "backyard" for their own small crops or perhaps a chicken coop or another animal pen, some houses will have no field to represent the different crafting roles, and in further areas of the village there will bigger field that follow the three field system.

I'm thinking something like this image I found in Agriculture in the Middle Ages on wiki.
1280px-Three_Field_System.svg.png