New 52 Superman Watercolor 03

Here is a better look at the second layer. Again I apologize for the graininess and poor color quality of the photo but again the flash wouldn't work properly. I mixed in some burnt sienna into the vermillion-ochre-white mixture to increase the richness of color to outline the tendons in the arm and face. However, I'm having problem with the back of the neck. I'm debating whether or not to throw in black to give it more shadow, but i've also got to keep in mind that it might be hard to distinguish the neck from the hair line.