Just to expand on Gandwarf's comment, post your map even if it is still a work in progress. We have a bunch of forums dedicated to just that (WIPs) devided up into the various types of maps (Regional, City, Dungeon ect..) and you will be very pleasently surprised how quickly your mapping skills will increase from all the suggestions and critiques you will recieve.

Be not afraid of being put down or anything. We are a friendly bunch and the collective goal of our community is to create awesome maps and help oythers do the same.

And I almost forgot... Welcome to the Guild