It isnt, the mainplane by the neutral area has one less flap, theres a few subtle differences.
No - the flap is there, you can see it poking out just behind the second green arrow from the right.
Plus a banked track surface.
It's likely the wing side closer to the ground will be transversely twisted more as ground effect increases, rotating about its forward fixation. To what degree, or whether it's apparent in this image or not, I can't say.