Oh, I feel like a rock star, now ! That's great for starting a new map-making day ! ^^

Jokes asside, this is a fantastic first map, Vyg !
I agree with XCali about the isometric/top view conflict, but as it's something you can often see on old maps (look at this one for example : Wetteravia by Blaeu), I have a special friendship for this old-fashioned style
I especially love your trees and small illustrations (this dolmen is great !). I think I would add some spare trees around the main forest to break the "block".
If you don't know it, have a look to the book "How to draw Fantasy art & RPG maps" by Jared Blando (@TheRedEpic) : a must have for acquire the basics, but it sounds you already have a good eye !