The gladiator, I know of other studies that have modeled it but saw no changes in the design, I have modeled my own gladiator, a very hard work of learning and that in the next I will try to improve, I will continue with the heroes saga.
https://www.artstation.com/blascool
You can download it to print for free here:
https://www.thingiverse.com/thing:4383824