I've taken my original kaiju/cyborg Orion, and turned him into a full pledged mecha. Much of the design was influenced by Evangelion (primarily the body shape) as well as Samus (from the Metroid Prime video games), and Transformers (Soundwave in particular).
On a side note, I got rid of the yellow highlights to prevent it from resembling the Evangelion Mark .06 too much.
I plan on using this design in the near future for something.
Orion © Arlo Hansen 2012
Drawn on Manga Studio EX 4
Colored on Adobe Photoshop CS5