They are definitely photographs. RobertJ put the link to the site where he got them in the comments. I have no problem with using a photograph for a background so long as the photograph isn't the main focus of the scene. I think that you should learn to make your own backgrounds, or at least take the photographs yourself, though (otherwise it's just a rank ameteur trying to get attention and/or learn the basic tools while not producing the same crap everyone else on his level is). "Summer" is pretty obviously computer generated. I don't know why the guy feels like he has to post other people's photographs if he can do that (unless, of course, "Summer" is also stolen from someone else). It's not Bryce I think... and the trees in the background are of course photographs. But that sky is very Brycean. And sans-- Couldn't agree more my friend. The point is to learn something, even if you use other people's stuff. But to add something, you only use other people's stuff with their express written permission and give the proper credit. Neither of which he did.