Normaly I do the wood effects with oil paints. This time I deceided to go an other way. MAin reason was that I do not want the wait for the drying time which is usualy neccessary for oil paints.
In the first step, I enhanced the preshading by the use of blank paint along the panel lines.
In the second step, I softened the black and enhanced the shading by the use of dark brown.
The last step of the preshading is used to further soften the transistions between the paints und to give the surface a more patchy appearance. This time a mid brown was used
This is now the base for coming pale layers of paints which hopefully will blend all layers together and will leave a pale but subtle patch surface