I like how each department has its own color. and the column design makes it look more professional. Although this is just a mock up, I can see it as each department being fruits, vegetables or something like that. a cooking magazine.
Hydroponic Urban Agriculture which can be run on fish waste water from intensive fish farming. This is called aquaponics. The plants clean the water for the fish, the fish water nourishes the plants as it is pumped around the system.