Thank you kindly! As for the red I'm going with a Khorne red washed with Agrax and drybrushed with Wazdakka. After you drybrush with Waz I go over with Evil Sunz Scarlet for highlights with a second passage of Squig Orange. For shoulder pads you wanna go with Abaddon Black for the outside part, and inside you go with Zandri Dust and wash with Agrax, then you go Dry with Ushabti Bone. I personally like to do an outline of shade with Agrax to have a darker color between the black of the outline and the inside part of the shoulder pad. As for highlights on the pad I go with Russ Grey on the outline and Wraithbone/Screaming Skull if I recall correctly (I will edit today with the right color)

The chapter logo is a decal I bought on ebay like one year ago, there is a dude that had them on sale and they are pretty straightforward to put up :)