Doesn't seem quite post-apocolyptic from what you've been showing us. Show us pictures of the ruined buildings.
That small town does't look quite post-apocolyptic either. I'm pretty sure it's a post-war town, but maybe some of the buildings were damaged from a raider attack.
The realistic carpet flooring texture clashes with the rest of the blocky props.
I suggest you focus less on using firearms and stress more usage of makeshift/old-school weapons. It's not like the guns are
bad, but ammo isn't free. Crossbows, Bows, and other weapons have reusable ammo which is why they would likely be popular with wastelanders.
Seeds exposed to intermediate levels of radiation may actually exhibit higher growth rates at first
This is a picture from the Lost city of Pripyat, which experienced radiation almost 2 times higher than that of an atomic bomb.

If your city had the nuclear bomb dropped directly over it, and looked like Hiroshima's ruins:

Nowone would even try to live there and move elsewhere.
You should try doing some research on the effects of nuclear bombs on structures, people, and society by looking at already-existing historical examples.
datablocks.
every add-on uses datablocks