I am by no means the best editor in the world. I am by no means the best writer in the world. I am by no means the most cultured reader in the world.
But I know when something is baaaaaaaaad.
This link is to one of the worst descriptive passages I have ever read, which you simply must check out (found through mentalfloss.com). It's ever so painful, and it is guaranteed to make you instantly feel better about your own writing skills.