i think it depends whether people have seen or used the grass brush in photoshop i mean, it's not only obvious when it has been used, it's like the brush is jumping out of the monitor to kick you in the crotch
but it's still a very cool manip/picture/thing, i love the brown hues
It's actually pretty excellent. It's not quite. If you look at a glance, or from a distance, there's an extreme likeness to a real photo. If you examine it, you can see that shading everyone's talking about.