Water color pencil prop painting.

[krow113]

As sort of described in the header.
 I am gonna try to do my Gotha 4 blade props with wood layer detail in water color pencil.
 I have seen/heard of it being possible and am asking if there are any tutorials available here or ...?
Props are in a light tan color now:

Derwent set from eaons ago, a present from my mother in law , and some extra pencils I picked up to make up the browns:

Thanks in advance.

[Ssasho0]

You should check Bertl's Pfalz and/or Albatros builds here and here

[petrov27]

http://forum.ww1aircraftmodels.com/index.php?topic=3195.225

post 238 or so