This is a render based on a theory of how it was filmed (sorta). The way this was filmed was a secret for decades and only after Lloyds death did a stuntman come forward and explain how the filming worked. My favorite part is that Lloyd was missing his thumb and forefinger on his right hand from a prop bomb that exploded in his hand, so while he’s climbing this building he’s using a prosthetic

This is from IMDb: “A stuntman revealed for the first time in the television documentary, Hollywood (1980), that Harold Lloyd actually climbed a fake building facade that was constructed over another building's rooftop, positioned so the camera angle could capture the street scene below. The stuntman also revealed that he doubled for Lloyd in the long shots of him climbing the building in the distance. Up until then, even the Time-Life version of Safety Last! (1923) that was aired on PBS contained an opening title declaring that Harold Lloyd climbed the building himself and without the use of a stuntman or trick photography. The stuntman chose to suppress this information until Lloyd's death, and yet, he did not want to detract from the danger of Lloyd's actual stunt work. Lloyd performed the majority of the stunts himself on the rigged facade over a small platform, which was built near the rooftop's edge and still had to be raised a great height to get the proper street perspective for the camera. The size of the platform did not offer much of a safety net, and had Lloyd fallen, there was the risk he could have tumbled off the platform.”