I wouldn't want the chickens to walk underneath unless you wish to fish for eggs from underneath....
The shed is cute and has potential for more of the same with some cosmetic and structural upgrades that can be done with minimal fuss. Looks to be a perfect little coop with said changes and the run area is also a nice area....lots of leaves for scratching under, good fence on one side(you'll want to supplement the fencing with some wire up top so the birds can't hop up to the top of the fence and down on the other side), good shade.
