This is my take on a Emperor's Children splinter warband, using a homebrewed scheme.

The main colours are copper and burgundy.

General Information:

My general method is to lay down all the base colours for the model, then do all the shading in the recesses before moving on to the highlights.

I don't own an airbrush, so the recipe will mainly consist of brush on paints.

Priming:

I find the metallic sprays from GW tend to be a little on the transparent side, so an initial undercoat of grey helps.

1. Prime the model lightly with Mechanicus Standard Grey
2. Prime over that with Retributor Armour

Copper (Armour Panels):

1. Drybrush over the model with Balthasar Gold
2. Shade the recesses with Agrax Earthshade
3. Add thinned Incubi Darkness into select lower recesses
4. Add a thinned layer of Kabalite Green on top of the Incubi Darkness
5. Highlight fine points and sharp edges with Balthasar Gold mixed 1:1 with Stormhost Silver

Burgundy (Armour Trim):

1. Base with Barak-Nar Burgundy
2. Shade the recesses and around any rivets with Agrax Earthshade
3. Highlight the edges with Screamer Pink
4. Highlight fine points and sharp edges with Cadian Fleshtone

Silver (Details - Chain, Gun Barrel, Vents):

1. Base with Leadbelcher
2. Shade the recesses with Nuln Oil
3. Add a fine highlight and scratches with Stormhost Silver

Black (Details - Armour Ribbing, Cables, Gun Casing):

1. Base with Abaddon Black
2. Add a highlight with Eshin Grey
3. Highlight fine points and add scratches with Dawnstone

Dirty White (Details - Wraps, Cloth):

1. Base with Rakarth Flesh
2. Shade all over with Agrax Earthshade
3. Layer the middle with Rakarth Flesh
4. Highlight the edges with Pallid Wych Flesh

Brown (Details - Leather):

1. Base with Rhinox Hide
2. Shade the recesses with Agrax Earthshade
3. Roughly highlight the edges with Skrag Brown
4. Add a fine highlight of Ushabti Bone

Green (Details - Lenses, Gems):

1. Base with Kabalite Green
2. Shade with Nuln Oil
3. Layer the middle with Sybarite Green
4. Add fine points of Gauss Blaster Green