I'd like to fancy myself as an "expert" image analyst so I will share my opinion.
Using no tools, software, zoom or anything other than my eyes this is my conclusion.
I am assuming only 1 image is fake. Of course there are some minor discrepancies in all of the images, but the only image that I am 100% certain of being fake is Number 4.
I can just tell, that it is obviously a screenshot from a video game or computer generated image. It is a very realistic image at first glance, but upon closer examination there is pixelization or choppy edges on the Lantern and Boots whereas a real photograph would have blurry edges.
The nail in the coffin for me is the moon and stars in the background which look fake to me. If the camera was focused in the foreground with the bright Lantern, I don't think it would be possible to see the stars in that great detail. Plus, whatever that shooting-star/crescent shaped cloud in the top left is looks unrealistic as well.
And now for my thoughts on the other 3 images.
The first image appears to have some sort of camera filter like Tilt-Shift that makes it look smaller than it really is. But it could be a real kitchen scene.
Number 2 is a very good image if it's fake. It would have to be a painting, and judging by the signature in the bottom right corner it's possible. The only things out of place for me, is the amount of egg white on the table, the perfectly placed egg shell fragments, and the texture of the egg carton looks a little blurry in places.
Number 3 is a little too simple to make any definitive conclusions. It is like a scene from an Ikea display, but there are some details which lead me to believe it's real. The Desk and the Floor could be real, and the objects like the Computer, plant and Ipad were photoshopped in.