Color Palettes that may work - Possibly the off red/purple https://colorpalettes.net/color-palette-4614/ On of the greens? https://colorpalettes.net/color-palette-4561/

1. 
   Airbrush VMC Air Black
2. Riekland flesh shade (AP Fleshwash) - All over then selective in the recesses
3. Chipping all over - Rhinox hide applied with a sponge. Should this be last? or maybe again at the end for fresh chips with edge highlights?
4. Highlight with Sliver or steel
5. 1 or 2 layers of Dark Tone
6. Highlight black VMC Air
7. Base coat accent armor color - he used ushabite bone, any light beige ( e.g. wraithbone or deck tan)
8. Shade downward and recesses Riekland flesh shade (AP Fleshwash) + Agrax (AP Strong tone)
9. Deeper shade of Riekland flesh shade (AP Fleshwash) + Agrax (AP Strong tone)
10. Highlight with Base color or base plus a white.
11. Basecoat orbs and glowing areas white. Use flo aid and ink for recess shading.
12. Layer Fluorescent Orange sweeping towards the recesses to keep the highlights bright. Add flow add to orange to get into recesses.
13. Shade with Fluorescent Orange and a little bit of red orbs and the corners of the recesses.
14. Glaze white highlights on orange areas
15. Accent color for addtional details - desaturated red/purple?