I feel really dumb, but I have never even noticed the boats. In the reversed I see them very clearly, but in the original the wave is completely dominating the view (now I see the boats of course, but my focus is completely on the wave by default).
Worth noting the color of the boats varies from white to yellow to dark brown in the various prints, so sometimes they appear far more obviously than others.
This happened to me too! I'm not sure if it's the left-to-right thing though, that sounds a bit unlikely to me. Specifically that it's tied to the language we use. (For the record I probably default to reading left-to-right, though I also read and write in Hebrew which is RTL.)