Here's where I'm at right now. I zoomed out a little bit. Added a lot more little icons and such. (Again, borrowing from nautical charts.) Not sure how detailed I'll go with the landmasses. As I'm still trying to figure that out a bit, most nautical charts are much smaller in scale than this is, and as a result, they tend to get detailed—not sure how important that is for this piece.

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Happy to hear any thoughts or feedback or opinions, or whatever. Also happy to share my process or answer any questions.