Can I use it on a video Youtube? I will mention you in the description.
Yes, of course. Feel free to use it however you want.
Just wanted to let you know, I noticed that the second building on the left side, right under the bottom window it's transparent and I can see the cloud behind it. Shouldn't there be some color there? (Sorry i'f I'm being nit picky.)
I wish to use this background photo in a collaboration piece of zombified ponies. If you allow me I shall send a link into the comments on this page.
Yeah, you are free to use this image however you wish.