@Halfmoon Media
For a first map, I think that's very good.
Your sloping problem. I agree with Adiktuzmiko that how you're trying to do it now doesn't work. It's the lower ground that needs to slope up, not the higher ground just vanish. I'll hunt around for a map which shows an alternative way of doing it. I know it's on this thread, just don't remember where. I'll edit this post when I find it.
In the meantime, just a couple of things. The cliffs at the back don't have shadows, so look quite flat. I'm not sure that Celianna's onions are things that would be growing wild near a beach. Try something else. As you are making your own tiles, I assume you have some competence in editing etc., so could I suggest that you consider editing Celianna's sand or grass tile to make a more mixed one i.e. sand with a lot of grass, or grass with a lot of sand, to make a more natural 'blurred' transition between the beach and the meadow. At the moment it is, necessarily, a bit abrupt.