@TheGoodDonol Muscle builders on Google, medical human muscle graphs, Marvel and Dc comic books, not the Hulk though they no lie added extra muscles to him that don't even exist on real people which I find a hilarious obscure fact. Wrestlers from WWE.
thepixelizer
Necks usually slant forward diagonally a bit instead of go straight up. The six pack is separate from the belly button, usually they overlap and the last two packs end at the pelvis. the back is curved which is good, for a muscly guy the neck is quite thin.
There’s usually two thin muscles under the pecs.
Usually there’s an arc on the forearm which varies on viewing angle his forearms are looking a lot like barrels symmetrical on all sides.
All stuff you can learn easily from studying references.
TheGoodDonol
Thanks for the critique! Are there any reference images you can lend me for more studying?