Might sound funny, but the first thing I noticed about that first pic was the Lights on Nyx. Gullveig uses Small Green Lights for both the 'Wing' Lights.:PAnd then, I don't really like the Char Pic you use, it reminds me of Fatman in MGS2 >.> And as for the effect... The last one is a tad overdone if you ask me, Somewhere between the last 2 would look better.
Crusader
I don't really like the Blue Nyx to be honest, and as schlurbi said, the Shadow on the right side is kinda... meh. But, can I see a version with the other one you've got? Also, a link to the original Char Pic please? Looks kinda interesting:P
Schlurbi
That Greenish Nyx looks actually cool, But can you darken the Silver parts of the hull a bit? I think that should make the Green parts fit the general design more. Also, the Nyx sticks out of the pic a bit too much, maybe move it in a bit? Und ich don't like ze Char pic, soru.:PBut it looks rather cool so far. (The font could use a bit of playing around as well, but lets leave that for later)