It is the browser version yes! It seems to be more than the top left though, I drew directional swirls for each of the weathervanes, like with the West one, but the other three are missing theirs. I did the West one first but that was very early on. I erased the bottom right boat before adding the black stamp as a replacement, but for some reason they're both there. Also, before erasing the boat I re-did the sail in black, but it's still blue here. I'm also pretty sure I had more blue travel paths marked out at the top near the North spiral, but not entirely sure. The top left was more or less the last section I mapped out- after that I completed the South weathervane but I think(?) I marked that spiral down before mapping the top left, some time either before or after doing the top left I marked in the blue travel lines around the South weathervane. I also think I had drawn something near the East spiral that's now gone, since I remember the spiral overlapping it, but I could be wrong on that one.
Sorry if this is confusing lol- trying to remember the order I did things in! Basically, top left is gone, but other things are strange too like the boat/heart, and missing doodled wind lines by the spiral stamps. Also not sure why the East spiral is splotchy, I don't think I did that.