Well, you're describing a bunch of islands so 'looking like a clutter of islands' would be pretty normal :-). Maybe a way to shape the request with terminology is to ask if you want this to be one archipelago, or separate groupings of islands that are hard to reach from one another? What's the technical level / cultural range - low fantasy sailing, say pre-middle ages?

Are these the only landmasses on the planet? Do you want this to be a world map, or if not what size region? Things will turn out quite differently if these are spread across an earth-size globe, vs. collected in a Caribbean or Indonesian or Philippine equivalent region. "Humans are new to the region" suggests there's other landmasses elsewhere -- unless you mean we humans spawn spontaneously like maggots on meat? Do ALL these races originate elsewhere, only gathered in this island collection for purposes of storytelling and strife?

What's the style you're looking for? Is it a reference map from outside these races' viewpoint, or is it the work of a Xeph master cartographer? Or easier to afford and obtain - the work of a mediocre Xeph journeyman cartographer? :-) Me - I might could provide you a map drawn by a Xeph apprentice rope-spinner with delusions of cartographic adequacy, whose uncle used to tell tales of these far-flung peoples and their places.... would you prefer it drawn in wax crayon on slate, or in squid ink on the back of a piece of bad street-poetry? (three coppers the broadsheet, composed just this morning!)

Do you need walkabout detail on-board each island, or is this the equivalent of a schoolroom (boardroom? ambassador's office? captain's cabin?) reference map mostly concerned with the landmasses' relative distance and position from each other?

What's the map for?