Exsanguinators Space Marine

I am a massive fan of Warhammer 40k. So I wanted to make something form the universe. I found this really cool piece of art online and I want to make it.

The credit for the concept art goes to Diego Gisbert Llorens.

The texture for the Space Marine are 2048 and his weapon has 1024 and the Space Marine uses 47,268 triangles and the weapon has 2,584.