My lovely daughter was enjoying her book in the warm afternoon sun, and I wanted to see what effect camera tilt would have on the scene.
When you are taking a photograph most of the time you want the horizon to be perfectly straight. That way the viewers mind does not have distractions. The scene looks like it "should."
If you tilt your camera just a little, you make the viewer have to search and make sense of the photo. Sometimes being off horizontal can also give the photographer a "this is real life in motion" feeling.
If you do this every once in a while ok...but do it for an entire photo album? Sorry not for me. I'd bee sea sick and ready to head for steady shores.