About this world map you're showing us early stages of... Where does that fit on a globe? Most projections are going to be wider than they are tall. Decide on a reasonable projection for your main world map - based on the arrangement of land masses one might suffer less distortion than another-- or at least less awkwardly placed distortion. When you do generate a reasonable world, don't clip the view so close to the land masses. Some small-scale maps you're going to want plenty of ocean shown, whether to focus on ocean characteristics, or just as a convenient no interfering place to put legend info. Just search go the word "projection" and read the first 25 threads that mention it. Some will have good tips - particularly commentary by Hai Etlik, who is one of our resident advocates for plausible geodesy and projection choice.
You *could* call what you already have a world map, if that world is mostly water that you aren't showing; also if what is shown only goes to mid-latitudes. Hmmm - in other words if it isn't a comprehensive world map but essentially a regional one ;-).