I like this, but it needs a bit of tweaking. The edges of your elements are too hard, making everything look "cut and paste," instead of blended into one image. The hips/legs of the guy are a different color from the arms, and are do not contrast enough with the ice, except for the hard edges. The ice does not look like it is encasing the guy, it just looks like a background.

I would soften the edges (blur took, small brush size, about 45%) for better blending, color adjust the top and bottom of the body for consistency (Select from the bottom of the shirt down, and use Hue and Saturation), and would create some ice on the "water" to form around the edges of the guy at the base.

I'd also add some shading to the pegs in the ice to give them some depth, they look very flat.

thanx nator and mossyB for ur precious suggestions...did some changes...hope its ok

There is something very dark about this image ... you certainly captured his torture and emotion well.

Very nice dramatic composition author...best of luck