I've got a few tanks that I want to paint up in the Blood Angels chapter and I'd like some advice on how to do them.

Firstly, one of my Rhino's is going to be death company coloured. I've so far undercoated with the black spray and gave it two thin coats of chaos black to get a nice smooth finish. What should the next coats be if any? For highlights should I be mixing some chaos black and codex grey to go all around the edges?

The predators and other tanks are in a similar situation but have had a solid coat of Mechrite Red painted over.

Any advice is welcomed.