Hey, sorry about my recent post, I was angry when I posted it, and I came across this and kinda unleashed :/
Sorry about that, i have to keep personal matters personal, here goes some real CnC.
On the updated version, the depth is a lot better, but to make it better, you should have blurred the elbow and bicep on the left to make it look as if that is farther than the hand.
And you could've also blurred the hand on the right since it's so close to the screen.
For the flow, you should have made the the brushes go more the towards the lower right corner to make it seem as if he is forcing his surroundings to move around him
The lighting should be coming from the upper right corner, never try to make your own lighting on a render that already has it. You can always tell how many lightsources there are and where they are coming from from where the shown on the render.
In this case, the lighting is coming from the upper right corner and the lower left corner. Since his hand has a lot of light on it, it is blocking the light from his face.
Work on this and you'll get better
6/10