One of the first maps I downloaded from this website and I love it even at an alpha stage. The gameplay has proven fun on my small server with a few friends and once the decoration is completed I reckon this'll earn a 5. I would also say that slightly, but not drastically rougher displacements could go a long way to improving the natural look to the map. This is optional though, if you like them as they are, keep them! I've been mapping a few weeks and I'm certainly no expert. Overall I say 'Keep up the good work!'