I'll echo Arimel, I see no issue with your English - though I am saying this as a non-native speaker myself, so obviously I may not be the greatest authority here
I think that is a pretty damn solid first map, certainly a lot better than my first attempts ever were. What software are you using, just out of curiosity?
I'll also concur with Arimel about the labels getting a bit lost - adding a Stroke or Outer Glow layer style would help to make them stand out (if you are using a program that operates anything like Photoshop). I personally would go with a shade that is either the same as the surronding land or a little bit lighter, on a blending mode of Normal, rather than the white with Screen that is often the default option the program gives you.
But all in all I think the texturing on the land areas is maybe a tad too strong, as the lineart of the mountains, forests and whatnot all gets a bit muddied in there. Learning to work with texture takes time, but in my opinion is easily one of the most satisfying parts of digital artwork, so keep at it. Different blending modes and colour adjustment layers are your friends
Congrats on finishing your first map!