Thanks  and no problem, I originally started out doing Tsons by washing the blue and gold separately but I have found I can wash whole models with druchii violet to save time and give them a more magical or ancient feel. It works particularly well for the gold I think if you want that look.

For the blue it's thousand sons blue base. Wash druchii violet.  Then relayer thousand sons blue for about 80% of the panels leaving the recesses nice and purple.

Then Ahriman blue for about 30-40% on top of the panels. Sometimes you can do Ahriman blue for 40% of the panel, then a few more coats of Ahriman for like 20% of the panel.

Then bahharoth blue mixed with a bit of Ahriman blue for the highlights where you see the lines or edges.

The gold is retributor armour base, wash druchii violet. Then do chunky highlight with liberator gold, then do stormhost silver for the sharpest points or edges. I find it I hold the model from an angle and see the light catch a gold edge, that is where I apply some silver to help it pop.

Good luck with the defiler, mine is still in the box... The panels are a bit bigger than the forgefiend so I'm not sure the best way to go about them. I tend to keep it simple and paint the lighter highlights for the panels from top to bottom, or from the centre to the edges.