Mapmaking inspiration/help needed!

Hello. I've never actually made some post here, but I've been lurking around this site for some years, using this account for it's benefits (mostly dark theme) and enjoying your creations. However, I need your help. My main minecraft passion and skill is mapmaking. Not the part about building villages, cities and landmarks, nor the one about making subtle changes with WorldEdit, but the true landscaping part: WorldPainter. Now, while I suck at most minecraft mapmaking skills, WorldPainter is something I'm really good at and I really enjoy. Over two or three years I made quite a few nice maps, that I played with some friends (see images below).

Amalthea - a pretty basic and    Oldus - one of my biggest projects, a 7K map I
bland island that has quite a lot   had made for a roleplay with friends. Really not
of underground dungeons.      proud of how the rivers turned out to be, tough.

But now I want to make a map that gives off real Dremhal or USW vibes. Something like: "A few big islands in an infinite ocean". You know, the classic thing. Now, you may ask, if you have gotten this far without getting bored, what is my problem? Well, I can't find some decent basic shapes. While creating details and custom biomes is not a problem, the overall shape is. I can never find one I truly like. So, what I'd like to do is submit an image, which can even be the most basic template made in paint or something more detailed made with gimp or photoshop that depicts the layout of the islands. I will take inspiration of any image you send and if there is some I really like, I will credit the creator in-game with a statue in a village or something like that.

Here is an example of what You can submit:

Good luck!
N.B. Even if you read this in a week, a month or a year, the thread will be still open for submissions, because I always need new ideas.