The title is still too general, if I understand the point of these photos: They appear to be intended as splash images for app websites (I guess the first batch

The title is still too general, if I understand the point of these photos: They appear to be intended as splash images for app websites (I guess the first batch of 10 is for desktop apps), with the implication that you will perspective-distort a screenshot and superimpose it on one of these, using it on your home page. It's not a bad idea. It certainly can lend a more dramatic look to a low-budget brochureware site, although were these to become popular, they'd quickly become recognizable.