What i love about this pic, ist that this version looks like it can move quick in combat and even move at all. If you take a practical look at the original armor, you will see that it would dramaticly reduce a man´s mobility.
Well, they actually are properly reffed to as Astartes and call themselves Astartes. I've always found the whole flaunting of 'SPEEES MEEHREEN!' to be fairly stupid when they don't primarily refer to themselves as such. It's also why GW attempting to copyright the term 'Space Marine' is bullshit when they have a much more original and cooler name than a terribly generic title as such.
As for the redesign, I love it. I makes the armor look modern without the extremeness of some redesigns where it makes them look like MJOLNER armor from Halo. The classic ceramite plates are still there, as are the wonderful pauldrons, but the stuff that previously didn't even look that good (the pipes on the torso) is vastly improved. Fonte's got another thumbs up from a stringent follower of the canon. You need to draw more of this stuff.
I love that you reigned in the crazy 80's shoulders and this armor feels like it has more "crunch" to it, could actually see this in combat. He looks like he'd be able to lift his arms over his head AND turn his head. Bonus.