On of the biggest individual aspects of my worldbuilding endeavors thus far has been getting to this point with my world map. I have gotten here, and past it, several times now leading up to this moment, but I think I am finally happy with it.
What you see is the landmasses and general projection of the ocean currents. These currents help predict many things about a planet's climate and weather, and therefore are the first step towards my main goal of projecting climate zones in line with the Köppen climate classification.
I would love to eventually write up a guide on how to get here, as well as my next steps, but the gist of what is to come is that the red arrows represent "warm" currents (moving equatorial waters pole-ward) and blue represent "cold" currents (polar waters equator-ward). These, combined with the low and high pressure zones created by wind, contribute directly to precipitation and general air temperature, as well as obviously the relative temps of the coastal waters.