Nice work! You are really getting the style right.

And I daresay that your attempt is better to the eye for me than what you are emulating; the other one's mountains and forests all seem like they are under a whitish faded sheen that doesn't look that good to me. So, well done on yours and keep up the good work!

Nitpicking goggles, I would like to see some varying colours in the ocean, even if it is subtle. At the moment, you have a darkish outline around your coast, but that is not realistic(even if this is a fantasy world) Coastlines, have shallow water and then it gets darker as it goes out to sea and only becomes lighter again when there is maybe an underwater mountain or island or mainland.

Good luck,
Omri