"The Butcher" Work in progress

I would like to show you the progress that I've got on this character of mine.

His name is Torno, but everyone knows him as the Butcher. He is one of the guys that do the dirty work for a local lab on planet Z540e7 in Chorestena. The lab has been deployed 2 earth years ago on that planet to study the wildlife. The scientists that are working in the lab have hired 4 hunters to get them the species that they need for their researches. Trono was the last one recruited. Not because of his skills, he is actually the best for the 4 in the matter of killing and capturing. But his attitude is what lighted the doubt in the scientists, cause he thinks that if you need something, you should do it yourself.
I will reveal the story when i finish this piece. Here it is.

Tools used: HB pencil and Koh-i-noor eraser, black ballpoint pen and 80g A4 sheet of paper