The front half of the helmet is coming along. Here are some shots of my work over the last few days.
To begin with, the area at the left corner of the visor opening and the left half of the brow. In these shots
you can see the work on the left cheek as well, since I forgot to post the cheeks when I finished them.

Next is the right half of the brow, as well as the right cheek.

Next I worked on the left mandible. Here are a couple of angles.

Finally for this update, the upper half of the right mandible. This area is an eye crosser! Lol
I break it up into two main portions, upper and lower.
Here's an in-progress collage of the right mandible, showing the stages I go through.
First, the silver. Next is the gray. Finally I add the maroon/purple and base red details.
I'll work on the lower half of the right mandible next. After that, the "basic" painting will be done
and I can begin detail work on the ears.