In this photo, why is the sun not positioned exactly above the "axis" from which its reflection seems to spread?

I think it could be how sunlight refracts across the northern hemisphere but I'm not sure. I took this photo and I would be fascinated if this was a physics problem rather than a problem with my camera.

In this photo, why is the sun not positioned exactly above the "axis" from which its reflection seems to spread?

I think it could be how sunlight refracts across the northern hemisphere but I'm not sure. I took this photo and I would be fascinated if this was a physics problem rather than a problem with my camera.

I used an iphone 5s.