The easy way to tell the difference?
Drive by the house.
Assuming that’s not convenient, the other way to tell is to note whether the grass is too uniformly green (characteristic of Photoshop), and whether other detail (like budding leaves) is consistent with the rest of the photo.
Of course, while I have seen digital photos with added shadows and other touches, that’s usually associated with a real photo, if only because those things are expensive to add digitally.
Verdict?
The shot above is real (vs. “Photoshopped,” or digitally altered), taken six weeks after the photo below.
See also, “Photoshopped? Or Not?;” “Faux Photo?”

