Looks drawn in places, with charcoal pencils. I really like it. I also like when an image is intriguing enough to have me take a second and third look.
Thanks a second time, Rob. I took this shot a year or so ago and when I looked at it yesterday it was the tree line and electric pylons along the bottom and how they provided a sense of scale that struck me. Perhaps these are the charcoal-y elements you're thinking of?