Metal Teeth

Metal Teeth, riding up and down over and over again...
I don't know if you can tell but i'm talking about an escalator!!! The picture didnt come out all that right... i'm not that happy with it really. It was a little hard to take it. I was on an escalator at Picadilly Circus with some friends at rush hour ... plus I still haven't been able to take pictures without feeling weird that I'm positioning myself strangely! I was pretty much trying to take a picture of it upwards on the way up because the escalators are pretty long, I tried to convey that but !!! Looks like another one of my pictures kinda dont you guys think?

I'd appreciate some critiques to improve!