Welcome to the Guild, RogueLeader - I noticed your name at the bottom of the page (whose online) now and again and glad you got out of lurking mode to say "Hi!"
Post a map! Don't worry if you're not satisfied with the work - let us look see and give you some direction. No matter way to learn how to map better than to let the membership point you in the right direction.
Many of us are and sometimes "were" DMs for our own games - so we know where you are coming from.
Again, welcome! Did I say, post a map - I guess I did!