Hey! I’m new to the guild but I’ve been mapping for a while. Your coastlines look great and the textures are really nice, so I’d say you’re off to a good start.

One thing I think would help your map would be to fiddle with the continent’s placement to one another a bit. Right now they’re kind of evenly spaced out in a 2x3 grid which feels unnatural. The cluster on the left side looks good on its own, so I think if you you pushed one of the land masses on the right next to another it would help give things a more natural asymmetry.

After that, I’d recommend establishing a limited color palette; pick out like five or six colors you want to be predominant in your map and do some tweaking to bring your current colors as close as you can to that palette; it helps pull the map together and give it a sense of cohesion and internal consistency. Plus the overall tone of the palette itself can communicate age or mystery or some sense of the climate, which adds metaphorical weight to the piece without actually adding new info and cluttering it.