On the lower feet metal work, are the recesses washed with thinned acrylic paints, or powders?Ditto the streaks and grime on the main armour plates - is that an acrylic wash or have you moved over to oils?
On the lower feet - all oils. Streaks on the armour are a combo of acrylics and oils.
Looking great. I like the color you picked for the armor.