These are 3 of a squad of 9 Tactical Space Marines that I'm currently building. I've been practicing here some edge highlighting, a new helmet pattern and a glow effect for eyes and the flamer nozzle.
The glow effect was done in the following steps:
1) Fill the flamer holes with Mechrite red
2) Apply a variable quantity of Sunburst Yellow
in the holes (more in the center holes, less in the top and bottom holes)
3) Apply a variable amount of Baal Red
wash (more in the center holes, less in the top and bottom holes)
4) A soft Chaos Black
drybrush in order to clean any red and yellow paint that was outside the holes.