So as I promised earlier here's how I paint my Death Guard.
It's worth mentioning that I spray my Death Guard white and then black out anything that is going to be metal, dark green, gold, ETC
Do two thin coats of Screaming Skull. Pick out the recesses and around the bolts with Seraphim Sepia.
Once that's dry clean up again with Screaming Skull and then highlight with white. I tend not to highlight every edge just the main/predominate ones.
SHOULDER PAD GREEN
Two thin coats of Waaagh Flesh, shade the recesses with Agrax Earthshade. Same as before tidy up with Waaagh and then highlight with Warboss Green and then edge highligh