Can some 1 please tell me how this introduction to imaginative writin peice i have to do as my coarse workd is

White capped mountains surrounded the acres of frozen lake as the freezing wind swept across were the shatters of a plane lay and an unconscious young man who lay on the carpet of snow. Nothing but giant mountains was in sight, mountains to the right, mountains the left, everywhere. It was a cage of mountains; nothing but white, like a white washed room but highly intimidating. It was the Bermuda triangles brother, any plane that dared cross it, the angry jail of mountains would take it in with no mercy. It seemed like he was locked in. Locked in this cage world of snow; like a cage bird, he was not free.