So These are just some concepts I've been working on. I think they turned out pretty well. And the model without armor is just the basic frame of the two. The concept of this was somewhat similar to that of an EVA, as in it's a living organism which can be used as a mech. Ada has heavy armor because that unit is intended for more intense battles, while eve has lighter armor and is supposed to move faster because is is a scout mech primarily. Both units can have the "Icarus" wing pack for improved flight maneuvering and speed. Both can mount the shield but due to "Adams upgrades to improve strength and armor it can support 2, while Eve can maintain less armor and had it's specs varied to increase speed. The original design is was inspired by the swan song album cover by Led Zeppelin.
Interesting concept, reasonably nice level of detail and articulation. I think you must have similar influences to me as the head and limb design is VERY similar to the likes of MOKO.
One suggestion though, the shoulder design, it doesn't appear to lift, just rotate and move back and forward. In actual human bodies that is almost the opposite of what really happens. if you swap the t-bar so it attaches to the body horizontally rather than vertically you should fix that.
I think with the concept I'd also have gone for white and gold as the primary colours, but gold and steel works just as well.
I like the choice of the crucifix as the recurring theme in the weapons.