Slapping photos as is in the game like Sonic Adventure
>>11795308 did looks absolutely awful. I've always thought this game looked awful. It's also lazy.
Good devs at the very least modified the photos with a pre-determined art direction so that they can all fit together.
It's like using stock sounds, everyone's heard the Doom door sound or the Battlelord cry from Duke Nukem 3D in several movies. Now devs that take stock sounds and modify them to make them more suitable for their games do not have this problem. It's weird Duke Nukem 3D didn't do that considering that they did modify the stock pictures they used for some of their textures, I suppose the difference is for textures they had no choice but to modify the photo to adapt it to their palette, which is why once the 6th gen lifted all restrictions and allowed to used stock photos as-is like Sonic Adventure it started to look like shit.