Don't worry about it bro, I'll wait for like 24 hours more if that's ok with you, since I need to wrap it up on your (gladiator part) end and then we are set to go
I'm not sure if he bawled all that hard, every piece of lore I've picked up on speaks more of him thinking Horus being a weak lil priss after Terra. Also yes indeed, those fucking helmets are the new pauldrons and I love it. Love every second of it. More big gruesome head wear and more importantly gimme dat World Eater with heavy bolter.
That is one thing I always loved about the Eldar, the fact they had the coolest helmets of all times, going old school with 'I am the best because I have the fanciest headgear!' And well perhaps he became like that later on, but then again every Astartes ever got super-duper angry after their primarch died, look at the Iron Hands how bitter they became and how berserk the BA became :X
Ezekyle looks more like a clone of Russ rather than Horus in that picture. If he was rocking the topknot proper it wouldn't be as much of an issue aye aye.
I don't really care all too much, everyone has a bad hair day. And I think the artist wanted to get more the 'founding days' point across, rather than how we all know Abaddon in the 41st millenium. Although I agree that he seems like a very regular marine, that is somehow exactly what I like. It shows how far one can come just through determination and will power, even if fighting for the 'bad guys' ^^