I enjoy the look of the power sword. new design? And the intertwining of the older armor. But I do have to throw my lot in with the peanut gallery the vox on the aquila and the errant is way cooler. but I do like how you added the laurels. to the top of his helm. everything else is beautiful.
No, not yet. The latest armour available to the Imperium is the mk VIII "Errant".
Hm... Well, I don't know. Definitely a fine piece of armour, but it just isn't the same. The chestplate reminds one a little of very early version, which is a good thing, but the shoulder guards? That little piece missing is what makes it ... yeah, incomplete (somewhat similar to my vocabulary I think)... And of course there's the helmet. As DeusImperator said, the grim looking face grill was much cooler. I can't imagine a techpriest on Mars who agrees in reforging something valuable reliable and of course sacred like power armour. Perhaps not even the Emperor himself could speak such heresy without getting flogged at least once ^^