Right, well even the nugget might not warrant complete natural exploration of the map. Just having one hidden pathway through the trees would suffice. I like the idea of starting in the snow (rather original, actually), but I would still suggest adding a little more decoration to it.
Also, buh I'm bad with numerical ratings, so sorry if that 4 seems too harsh. I think people should take more away from the comments than the numbers anyway. If someone asked me why I put a 4 instead of a 5, I wouldn't know how to answer really. :P