First, I really like what you've done with the visuals. I love the fog effect and all the art is really nice. A few negatives: I kept getting stuck on the terrain geometry or hitting invisible walls which was frustrating. The trees also pop in from a fairly short distance which was distracting. Also, the enemies were pretty basic and just seemed to be stuck on rails so it wasn't a particular scary experience. Overall, I had fun though, and I really liked the overall ambience and graphic style.
(On an additional note, my submission also deals with monsters in a forest using Unity, so if you get a chance to check it out I'd love to compare notes!)