Tunnel (Testing my new Canon 5D Mark III)

Found this cool-looking tunnel close to my friend's house and got a few test shots. I'm very impressed with the camera. I didn't have time to read up on the new features so I'm sure I goofed on a few things (ie. left it on Auto WB; recorded it on IPB when I think I should've done ALL I), either way, this camera is solid! Specs: Canon 5D Mark III - Canon 16-35mm L II - Juiced Link slider - Shot @ 6400 ISO