Hi there walkingstop,
Your map looks amazing and looks fun to play on, but since I have to follow my name's rules. I have to give some constructive criticism. The islands look good in general, but I think you could add some color to them, it looks too bland.
^^
Example of mesa mountain
The mountains also look like a bit too much, so maybe clear it up a bit or add some more layers to make the mountain hard to climb. This might not be true, but from the angle of from what I'm looking at, it does look a bit crowded. The name also seems kinda bland because of how 'unoriginal' it is. Maybe give it some cool name like red sand or whatever, I'm not good at naming so don't take my word for this lol.
The trees look awesome, and makes it fun to climb in (especially in Eggwars, where you're running from island to island). The underneath of the islands look quite amazing and definitely make the map just stand a bit more, but I think you could add more color or LESS color to the sand as the sudden transition from orange to white kinda makes it feel futuristic and alien-y.
Overall, it looks amazing and I could definitely see it being a map soon :D