1 wing constructed with 3 elements, very good for high angles of attack, nice air-craft
If the angle of attack is very small, then a single-piece wing is better.
OMG What's this?
Something very strange from an Aero-Nautical point of view.
This isn't 1 wing, but many sails: a ship-with-sails. Maybe it's 2 wings. I don't know.