This is a mixed 2D/3D work where I took a snapshot of my 3D model and started drawing on top of it in Photoshop to detail and tweak the design. Sorry for the bland presentation, as this is more of a step in the process of finishing the 3D model than a showcase concept in itself.
Criticism is very welcome.
edit: Oops! I forgot there was a category specifically for concept art. Thanks DA!