Wow that's really scary! You got the atmostphere perfectly.
I noticed the camera clips part of the corn when you get too close, you probably know this already but you can fix this by reducing the camera "near" value (under the "clipping planes" section in the component inspector, it's 0.3 by default).
Really liked the atmostphere and the sounds in the corn field, however I don't know how to get out of it after I got all the ingredients, is there an easy way out or do I have to just walk until I find it?