Ever thought the reason it seems to be a "mix" of all those things is because they have certain elements that a lot of people like? Not to mention the game is going to exist after some other similar art did. That doesn't mean it's a rip-off, it just means that Bungie is hitting the nail on the head by making a game that incorporates a lot of different themes into one piece. That's actually hard to do. Drawing all the cool things from different place and turning them into one coherent shape is actually really cool... why wouldn't you want to play a game that had all your favorite concepts? "Quick, call the Mayor! Photorealist painters are destroying art! My god, they're destroying reality too!"