Update:

The right one is the newest armour iteration, lemme know what ya think 
Yo…looking really good.
The initial sketches were reminding me a bit of Aliens (the film) sort of. I really like these new concepts though. I prefer the left one the most as it has the most original looking armour with some strange angles and plates. Such a skinny being but still looks like it could kick ass.
I want to see what your going to do with those legs though!..
Keep it up 
Update, one try (not so successfull IMO) at a colour pallette and the artifact.

Lemme know what you guys think
Nice…
The colour scheme reminds me alot of Halo. Which isnt a bad thing.
I’m loving the Blue wing things (are they Ice?). I would love to see them a bit bigger bit bigger and more elaborate. But as they are is good.
The jury is still out on the area below the waiste though. I’ll have to see how that developes.
The “wings” (which is a kind of totem in fact) are supposed to be Icy yes. In fact their the artifact weapon, but still need to develop them more. Although im not too fond of making it bigger, or it may start looking a bit too much like actual wings… I’ll give it a try anyways.
Still the point is it needs to stand out much more indeed
As for the bottom part im not satisfied either. The one with teh ice floating around doesnt make much sense the more I think of it, and the one with the plates connected is badly executed
Dum di dum. I believe im almost done with the concept art. I may still change the artifact and the lower part if neat ideas come by though. 

Let me know your thoughts
EDIT: Heres an alternate colour scheme, to go alon with CGSociety’s colours

great design, it’s something that stands out from all the others so that’s a good thing
keep up the good work
Wow! It’s looking good!
I prefer the upper one cause I think the yellow complements the blue nicely.
Yes I prefer the one with the yellows as well, but I also have to figure out a way to get the logo and colours in there.
Anyways, I wasn’t at all happy with the lower section and artifact, so im redesigning them. At the same time ill worry about the team’s colours
A reworked version of the artifact and the lower section. I’ve also rebuilt the plating on the side torso.

Lemme know what ya think
I like the crystal look better, but i like the original shoulder piece more than this new one. Are you going to keep the blue around the neck piece? I thought it looked cool. But what do i know? nice work
Nice colors!
I feel that the new crystals draws more attention into those area than the previous shoulder piece, yet provide a quick read on what’s the element is (which are good). However, seems like I’m also on thejaybird side in liking the previous shoulder’s shape better. But the crystals give more impact on first read. Hmmm … tough decision to me 
Yeah well, Im still fiddling with the artifact (guess I’ll put some ice shards floating), the lower section (still) and I might revisit the shoulder pad (doesnt fit with the rest of the design honestly). However I wanna start modelling ASAP so I’ll only do one more sketch or two.
Stay tunned
Heres the final design, also tackled the back.

I’ll do just 1 more illustration (action shot).
I may change the artifact yet, but as for the rest, its mostly done yay! Of course I may have to change some things when on the 3d phase, but for now, this will do I believe.
C’est fini! I really need to practice my illustration skills, when it comes to detailing stuff+keeping the image dynamic\artsy\etc

Now I need a name for him hmmm
I’ve updated the first post with the Concept sheet
I know I said I wasn’t going to touch the concept again… guess what I lied 
Wasn’t happy with some minor details so took care of them

C&C always appreciated
This is gonna look sooo awesome man I’ve seen the 2d sketches now is time for some 3d, and it is looking great so far