Sasori's fiery red hair is so wonderful, especially against the blue and green forest background. There seems to be a glow coming off of him. In lower right hand corner you can see something which looks like a person, namely Deidara. The tree and the grass, which also seem to glow, are amazing, I'm jealous of them. The water also sparkles which adds to the whole "glowing theme" I also like the thought of Sasori washing his clothes, it makes me smile greatly. Also how young he looks, even thought he's in the body of a fifteen year old he looks younger (not too younger but just right).
My only critic is that the crotch of Sasori's pants seem odd, but other then that i love it completely.

I adooore the colours. That blue in the background brings depth and that red on danna makes him stand out which makes the perfect composition.

Those trees, those are brushes, aren't they? They give a realistic look to the picture, I can almost feel like seing it in real life I would add some reflection on the water near the ground, though. It looks a liiittle bit flat in there.

The roughness of the trees and the strong colours create a dramatic and mysterious athmosphere emphasising the situatuion- he's staring at someone we cannot see, but we all guess who they might be ^^ But we can't guess what they're about to do, thus the pic is much more interesting. It can really give you thrills if you stare at it for a longer while.