The pictures of Northrop X-47A are real. This, what is next to hangar is only a mockup, but there are also some pictures of the first prototype X-47A
(for exampe named First Flight).
Northrop X-47B is now only a concept, but it will be build soon together with Boeing X-45C. I currently do not remember dates.
Some are real, but the whole first group is not. They are CG models superimposed onto photos. Also note the title of that group of photos is "X-47B
Operational Concept". All the "X-47A Pegasus" photos are real though.