What makes people get a wide torso like the guy on the right?
Most young dudes have narrow torsos and shoulers. Is it bone structure?
>turn a little to the side
Single phone pictures aren't the best way to evalute anything since you have angles and lens distortions. I'm not saying the two guys have the same width but you also need to know the same guy MAY look smaller (or bigger) irl.
Viking/Western Russian genetics, basically.
There's a reason why the Varangian Guard absolutely wrecked the shit out of all the little tan and brown people down in Greece, and it sure as hell wasn't tactics because these guys were drunk half the time. Some muscular, bear-mode 6'5" viking guy with huge broad shoulders bringing all of that force onto a little brown manlet's head with an axe is just going to butcher him.
People need to stop referring to the Vikings as some superior warrior class. These guys were like the lowest class of fighters, they were literally just pirates and raiders who could only overwhelm poorly defended villages.
Most proper battles involving large numbers of vikings ended up with them losing, even with superior numbers.
The Varangian Guard is a good example of east/north european genetic beasts though
The vikings who fought for the Varangian Guard were the best of the vikings, especially in the earlier years. Raiding England and Western Europe in general was for the shit-tier manlet vikings, basically just niggers with their loot and run away tactics, while the smart vikings realized they could make a lot more money by heading down to the Byzantine Empire and fighting as the Emperor's body guards in actual battles against people that weren't unarmed peasants and monks.