From my experience living on a farm, I’d suggest adding pins to where animals can stay, and adding more to the surrounding area at the moment there isn’t much around other than a few buildings and 5 small fields. Make sure to add trees as well, other than that it looks pretty good!
You’ve done a great job at keeping the building style consistent throughout the map! I especially like the silo you’ve created. The material you’ve used on its inclined roof is very fitting and looks really nice.
In terms of possible improvements, I think the barn is a little bit on the small side and could benefit from being made slightly taller. The entranceway at the moment seems to be not much taller than the player, which takes away some of the model’s realism as most barn entrances are considerably taller than the average person.
I also agree with @Junozy and @21stPsalm that the map is quite empty as it stands right now. I think the likes of farm animals, trees, plants and rocks would help to enrich the environment. Varied smooth terrain, such as the occasional mound of dirt, might also be a nice addition to help make the world look more lifelike and lived-in.
