This could be good for the gazebo or somewhere else like the front porch if the diagonal hammock is too invasive. It could also be cute to have two hammocks on the front porch on either end of the rocking chairs which would create a cozy perimeter.
Belgravia House in London by Todhunter Earle. Even though this is a rooftop garden, the design show would be excellent for any long, narrow yard. Great way to break up the space by making different "zones"!