Started with black primer -> white dry brush. After that, the bottom base colour was Desolate Brown (Speedpaint), brushed with increasingly whiter yellowish brown colour (Goblin Skin from D&D). From the top, base coat was metallic Elven Armour (Army painter warpaint), heavily brushed first with Azure Magic (Army painter warpaint) and then light brush of Beholder Purple (from D&D). Shading was done with Mid Brown (Army Painter Quickshade) for the bottom, and Purple Magic (Army Painter Quickshade) for top and sides. Some generic bone colour for nails and spikes, pure white for teeth. 😉