Back is great, no doubt.
Delts dwarf arms, which is unusual and not very aesthetic.
Quads/hams size and separation lacking.
Calves excellent.
Great back. Excellent calves and forearms that overpower quads and upper arms.
Dorian was hard but his detail was bad (except in the back, calves, forearms, abs). Many muscles groups don't pop up and some poses suffer from it, like the most muscular.