My pete peeve is always scale. If I look just at the fence I'm thinking standard 6 foot fence...this one can't be though based on the size of the plant and the size of the barrells. But then there is what looks like a kind of toll booth or guard entrance shack to the left of the gate which looks like it would fit a twelve foot guy based on an assumption of a twelve foot fence. One or two more "known scale" items would help...people are an obvious route unless you have no access to models...so a truck or recognizable vehicle could work.