I've received the PSD from AoNanami, while it wasn't the finished head, I do believe he drew it now.
I apologize, it looked a lot like C/P from parts I've seen in games.
I still think you did a very bad job on the set, using the head to copy parts from etc,
but the drawing technique of the head isn't that bad, I like the way how you constructed the damaged metal.
Seriously though, draw each individual part and you might get a killer set!