First of all, there are different ways to get a print. This one appears
to be an all color at one pass, a method used to make the most copies for the least cost.
When I look at the work, the sky doesn't have all the care the buildings do,
the sky seems out of "perspective" somehow. The detail and "dramatic light/shadow" don't quite seem to match the sky either. All the detail is very precise, like an architectural draftsman. There's no real evidence of a recent human touch, almost looks like someone walking through a decades deserted town. The architecture of the houses look "germanish", the autos of no particular make or nation, they could have been left there years ago. The shadow line on the buildings suggest a lower setting sun than the shadow line on the clouds does. I think that's the perspective thing I see.
That's my opinion from what I can see, which isn't much. I'd like to see the frame - front and back, I'd like to see any writing or labels, I'd like to a close up of any detail and one of the signature. I'd like a photo up close so I can see any fasteners on the frame.
Its pretty hard to really know anything from your one photo.