In fact, I do mind... I don't allow any of my work to be posted up onto Facebook. I lose the copyrights to the photo that way by the website itself, so I only post up links of my work that lead back to here, no actual photo. I would have prefered it if you asked me before hand, though I do appreciate you linking back and letting me know.
I must kindly ask you to take it down though, and in the future ask before you use any of my photos.
I am flattered that you liked one of my photographs though, enough to want to use it.