Quite good blending and interesting idea. My nitpicks are the light comes mostly from left sides and a bit from right side based on the body (that's not direct light), but on the face the light comes from the right side, so you should adjust the light on his face to be more uniform (increase the light from the left side). Also, the eyebrows are white but the hair is still dark (maybe it's still acceptable since he can colorize his hair lol). The last thing is the stroke around the body and face is still visible in Hi-Res, you need to clean it more (make some hair for him, so the head won't look like cut and paste). Hope this helps and good luck!
PS: if you're able to make the folds on his body skin as the one on his face, that will be great!

Thanks for the suggestion langstrum. Added some hair and used some dodge and burn on the face and neck. Also removed some of the sharpness which caused the halo around him. I hope it looks better now.

Wow...excellent work. Great job, author!

Looks great! Just have the wall behind him show through the glasses next to his face.

Holy blue suede orthopedic shoes! Hey that "cigarette" looks hand rolled. Could it be... nah. Very convincing image, I expect the tabloids will be running it soon. Excellent work!

Fantastic work author...every single detail look so realistic...u did really really god job here...well done

Really good, the images are very well blended, resulting in a realistic work.

Fixed the glasses as CMYK46 suggested.

incredible work author!

Fabulous!

Well deserved win...congrats!

Congrats! for 1st

Congratulations!

Congrats Solkee, what a dude

Congrats on you win - well done!

Congrats for 1st place..............

Congrats...well deserved 1st place...

Thanks everyone for the comments, faves and congrats. A special thanks to langstrum and CMYK for their suggestions that helped the entry improve.

Congrats for 1st place

Congrats!! Nice work!

Congrats! You earned it!