Face Plate Design (Final Concept)

After a bit of thought, I decided to use the concept for the face plate of my robot that I drew a little while back, mainly because it's the only skull concept that I feel works for the bot. I also got to actually coloring it using Sketchbook's gradients. I may have to switch to Photoshop at some point though, as the gradient function won't work properly on some parts of the face plate. I might also redo the entire face in Photoshop depending on whether or not it looks sloppy. Here is what I have now.