Paint with Pallid Wych Flesh
Paint all the flesh with 3:1 Lahmian Medium : Carroburg Crimson
Dry brush the flesh with Wraithbone
Paint all split skin/joints/holes with Volupus Pink . Don't forget to paint the inner joint of the legs under the body
Use Pallid Wych Flesh to highlight skin, mostly on the edge of the head and on around skin split
Make a gradient with Khorne Red on all claws and hooves. Do it in 3 steps, the first first that cover 90% diluted 3:2 with water. Then do another 50% pass with less dilutated paint. Finaly highlight the bottoms of the hooves and the edges on the main claws
Use Evil Sunz Scarlet to do some edge highlighting on the claws and the hooves
Add some more hightlight with Wild Rider Red but cover less than the previous highlight. For the highlight on the hooves dont go all the way to the back.
Use a final point to highlight tip of claws and just the front point of hooves with Troll Slayer Orange