So:
**
def makeSurface():
  # Gamma-correction node
  gamma = Add(2.2).labelled("GammaCorrection")
 
  # Placeholder for colorMap
  colorMap = ImageMap().labelled("Color Map")
 
  # Colours to fiddle with
  ltBeige = Color(.98,.94,.88)
  ltBlue = Color(.91,.95,.95)
  
  # Underlying skin tone
  baseTone = SimpleColor(ltBlue * colorMap).labelled("BaseTone")
  
  # Complexion
  setSkin = Spots(
    Base_Color = baseTone,
    Spot_Color = ltBeige * baseTone,
    Spot_Size = .1,
    Softness = .35,
    Threshold = .7,
    Noise_Type = 2).labelled("Complexion")
 
    # Anti-gamma process
  linearColormap = (colorMap * setSkin) ** gamma
 
  # Set up specular node
  setSpec = Blinn(1,.4,.4,.4)
  
  # Set up the Diffuse node, keep it from exceeding conservation of energy with Specular
  setDiff = Diffuse(linearColormap, .7 * (1 - setSpec))
 
 
  
  # Setting up PoserSurfacce
  s = Surface(1,0,0,0)
  s.Diffuse_Color = colorMap
  s.Specular_Color = WHITE
  
  # keeps diffuse_color from doing anything but just displaying in the pose room
  s.Diffuse_Value = Add(0,0)
  s.Highlight_Size = .02
  s.Bump = Sub(ImageMap(Background = Turbulence(.05,.05,.05,8,0,.5,.15)).labelled("Bump Map"),.5) * .03
  
  s.Alternate_Diffuse = (setDiff + setSpec) ** (1/gamma)
  
  return s
 
makeSurface()**

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks