I really don't like the art style Blizzard started using for everything after Diablo 2, everything looks like a cartoony Warcraft 3 character. Yes i'm one of those people who dislike Diablo 3 because it's so colourful and fancy looking but look at that Necromancer, if it's based off of the guy in D2 then he's decided to start wearing a very small leather jacket to expose his six pack, pecks and biceps, he now has an enourmous pointy belt buckle and huge pointy armour plates covering his small elbow and knees, and a huge ridiculous glass looking scythe which probably weighs a ton, also sweet goatie bro.
Look at the original design,

skinny creepy tall dude who fit the dark depressing areas in D2, obviously the new design fits better with the newer fanciful art direction which they also poured into Diablo 3, i just think it's a shame they can't help shoving that art style into everything, i was tired of it in Warcraft 3, 14 years later it just makes me mad.