Oh good, that water texture is in the PS3 version as well. Were both screens from the PS4 version in the mistake?
It can't be, unless the textures are also there it's based on the PS3 version at best.
I did an interview with the Brand Manager of One Piece the other day and going back and listening to the audio about the PC version he says it is based off the PS4 version. Though apparently this game is also really scaleable as you can play it on computers made a decade or more ago as well. It is possible that he was mistaken about which version that was based.