Ambient Occlusion Dirt (color dark brown, black mask > generator >dirt)
Gradient (color dark, black mask > generator > position, adjust balance/invert so that lighter part is intended to catch eye)
Baked Lighting (filter > baked lighting stylized, adjust sun parameters including color and intensity, soft light, 50-60% )
Stylized Wood (complicated)
Create a containing folder: Wood
Layer 1: Base (Fill-Layer, Color: Light Brown)
Layer 2: Wood Grain (Fill-Layer, color brighter brown than base color, black mask, add fill with grunge map)
Layer 3: Gradient Fill with lighter color (Fill Layer, color saturated and bright, opacity 50%, black mask, generator>position, change global balance)
Layer 4: Gradient Fill with darker color (Fill Layer, color deeper and darker, opacity 100%, black mask, generator>position, invert, change global balance)
Layer 5: Shadows with Ambient Occlusion (Fill Layer, color dark brown, black mask > generator > AO > invert, global balance)