The finished image was retouched in Painter:
Here is the gladiator in Curvy - you can switch between the posed and unposed versions with a keypress.
And here is the basic figure with the bones made visible:
Arm muscles were made using S-Merge of lathes for each muscle, torso was mainly a curvy map.
The sword was inflated from a greyscale picture.
The rest is straight forward curvy lathes.