Great start !! Don't be afraid to post in the relevant WIP section, it's a great way to get feedback on your work. Speaking of feedback, I really like the shape of your landmass and the overall texture. I do have a couple of suggestions; The bodies of water appear to be "floating" above your landmass. This could be due to a drop shadow. try lowering the opacity of that shadow and maybe adding a light blur as well. I',m not sure what the scale of this is, but the stone texture seems large perhaps re-sizing that texture would help. As I stated earlier, it's a great start and keep up the good work !! (oh and have some rep )