I noticed this just now, exiting Greenwater and walking towards the ship. During normal walking, when there's the usual head bobbing, the whole sky / background / horizon is shifting and and down, left to right, slightly, with the movement of the bobbing.

It looks super-weird, very distracting and I guess this is not intentional. Probably a bug.

I could definitely try and make a video if you don't understand what I mean, but it should be reproducable. Just walk outside of Greenwater. During the day I guess. And what the skybox.

...sorry, I didn't catch the thread on page two. Well I guess I'm not the only one then. This is so distracting that I too will have to pause playing until it has been fixed, which is very frustrating, as I was just falling in love with the game.