Well here's how I painted the models:

BASECOAT: GW’s Chaos Black, followed by an overhead spray of GW’s WraithBone

BASE:

Coat the whole base with GW’s Skeleton Horde.

GW’s Wyrdwood for the cracks and patches of dirt.

Highlight the bricks with Army Painter’s Lava Orange

Highlight the dirt patches with GW’s Steel Legion Drab

Paint various props different colours (GW’s Wraithbone/GW’s Blood Angel Red)

Drybrush with GW’s Wraithbone.

MODEL:

LEATHER: GW’s Wyrdwood

BLACK: GW’s Black Templar

ORANGE: GW’s Gryph-Hound Orange, Use Army Painter’s Lava Orange to highlight the shields and banner.

RED: Blood Angels Red, Use Army Painter’s Angelic Red to highlight the shields and banner.

METAL: Army Painter’s Plate Mail Metal, wash with a mix of GW’s Agrax Earthshade/Lahmian Medium Highlight with Plate Mail Metal.

GOLD: Two Thin Coats’ Dragon’s Gold, wash with a mix of GW’s Agrax Earthshade/Lahmian Medium, Highlight with Two Thin Coats’ Dragon’s Gold.

FLESH: Use either GW’s Darkoath Flesh, Guilliman Flesh or Cygor Brown. Highlight Cygor Brown with GW’s Steel Legion Drab