The Ultimate Fighter – Solution

The gladiator spear that the man is holding with his left hand in the left picture is missing in the second photo. When you shift your gaze to the skies on the top-left corner of each photo, you’ll notice a plane flying and leaving jets of white smoke in the second photo, but this detail is missing in the first picture.

Lastly, the highly detailed helmet donned by the gladiator has a missing bolt in the second photo. The bolt is located beneath his ear that’s right next to his right ear.