the rest, i think if want to achieve that sort of effect, start from scratch and use digital art faster, and can have more control. why go out and take a picture of life and turn it into something looking so artificial? the cloud detail in some of these pictures are really scary
not to mention, the composition is very blah. the authors have simply abused the effect to give it a wow factor, but i think after a few more looks, you get bored.