Great physique - Though always wondered who he carried so much muscle tissue & still had a weasley Pencil Neck !!!
LOL!
Maybe he subscribed to the Gironda school of thought, which actually deemphasized neck and upper trap development such as to accentuate delt width (or somesuch).
I think Pastel was one of Serge Nubrets' prodigies, and IIRC, Serge was a Gironda fan, too.