Please don't send me email or Flickrmail asking if you can use my photos. They're pretty much all licensed Creative Commons Attribution-ShareAlike, and that's all the permission you need. I don't answer additional requests for permission, because it's just a waste of everyone's time and it undermines the value of Creative Commons licenses.

I repeat: you have permission.

For attribution, link back to the original photo (for online use) and/or attribute to

xtof.

Note for tagat.design : details of license are mentioned on creativecommons.org/licenses/by-sa/4.0/