That Shogun's looking pretty good!
One more step (well, I suppose 2):
- Before the Agrax wash, paint areas you want to be metallic black. To me, that's things like joints, weapon barrels, heat sinks ... so on the Shogun's front, things like the grilles on the hipjoints, and the balls at the knees. Obviously you only need to paint black on the red bits 
- Then, after the wash, drybrush metallic paint (again, I'd go gunmetal, leadbelcher, other not silvery metal) over those black bits. You get the metal top, & dark inner bits. I think that adds a lot to the final mini. [/img]
The Shogun's just a test mini, it "donated" its PPC for my Stalker to be a HGR, and i added some green paints to its base yesterday for testing purposes. Wonder what it'll be a test for next... probably should get around stripping various test minis for re-use.
As for metallic bits, yeah, what you described is the plan indeed, and i intend to do that for the final company. But skipped this for test pieces to save some time and effort.
Got a box for making a wet palette. Seems simple enough, and it seems it should help a lot with painting.
-The idea is simple, if someone who doesn't know about wet palettes reads this:
-Get a plastic box, not very deep and ideally something with a lid.
-Put several layers of tissue paper inside, eg a square piece folded twice.
-Add some water, not much but to make the tissue paper damp.
-And finally, add a piece of parchment paper (baking paper?) on top of the tissue paper. Not wax paper. Palette is done.
Ideally, this keeps paints usable for a long time, and thins them as well. Close the lid when not in use, should be apparently usable for weeks. Add water if it dries out.
This vid is where i found out about this:
https://www.youtube.com/watch?v=96mjmqWTPfM