Thank you all for the comments
@Ooga Booga
I think so too and I tried to make him thiner.
@Insanity Complex
I know, althought in the image the small eyes look nice, on the model
they are too small so I changed it.
@shado
I already finish with the dino and I don't think I will continue it
becuase tomorrow Im going to the army so I don't have the time :
I just finish the troll head and here is the final model
I added more wrinkles near the horn, forehead, neck ect
http://www.polystash.com/non_relevant_files/troll4.jpg
Here is a zoom on the forehead wrinkles
http://www.polystash.com/non_relevant_files/troll5.jpg