Hey Mimine, and welcome to the Guild from me as well!

This is looking pretty great, you're definitely on the right track! I especially enjoy the ocean on this one - the pattern, the texture and the color look great together.

Others have already made some pretty good points, so I won't bother repeating them. I'd personally add that the size of the map seems quite large - maybe a little larger than is really necessary. Giving it a quick try in PS, it seems to me you could easily cut the size in half and still be able to see the details perfectly well.

Other than that, great work, keep it up! Looking forward to seeing more from you!