Concepts , might turn one of them into a illustration

These look awesome, my favorite are the first and third. I think whichever you should do is just a matter of taste, which excites you the most?

Nice concpets! I too like the first the best.
The third one has great shoulder pads but personally I'm not a fan of exposed abdomen / vital organs in armor, haha

I personally prefer the first drawing - but thats just my stickler for the more realistic and the useful when it comes to armour to be honest. They are all interesting concepts, the most unique being no.3, Whatever you choose they will all make good final outcomes, so i wish you luck on that

Really cool concepts! I think the first looks great it has a demon hunterish look, but I also dig the big shoulder armors on the 3rd.

I like what you did here. The first and the last one are the best in my opinion.
The only thing that bothers me are the shoulder pads from the two characters in the middle. They dont look like they are usable, but thats just the way i see it. I dont like too big shoulder armor.
But for conclusion i would take the first one, because it looks like an real usable armor.