Check out my review of the game here: Enslaved review
Taking screenshots at high resolutions comes with different kinds of benefits, with the main draw ultimately depending on the game in question. For a game with solid antialiasing, large resolutions help show more detail. Then there are games like Enslaved: Odyssey to the West. Enslaved is an insanely pretty game, but it’s a nightmare to smooth out all of the game’s jagged edges. At high resolutions, however, those jagged edges are far less prominent, and reducing the image dimensions from there practically eliminates the jaggedness, making large images the best way to obtain a smooth final image.
That being said, these are the full-sized versions with aliasing. Windows automatically resizes large pictures when you set them as your background (though that’s proven to be a bit hit-and-miss for me). Reducing the sizes of the screenshots manually not only allows you the greatest amount of control in how well they work as desktop backgrounds, but also lets me avoid having to spam a million different resolution versions of each picture.