inspired by the recent research activities here in zbc and by the wonderful paintings of southern, i thought i also try to paint in zbrush. before, i tried several times with photoshop, but could not get somewhere. now with zbrush, it looks at least as if i could learn painting 
so, this is my first digital painting. well, i obviously have a lot to learn, but i think the technique i used is interesting for itself, so i like to share.
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fill a layer with flat material and white color. use paintbrush and blue color (rgb only) and draw face. (blue is used to distinguish it from the grey in second step)
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create new layer, fill it with basic material and grey (rgb=128,128,128). turn off “render all layers” and tweak transparency of material : transparency =-40, curve = 1 at left hand side, drops linearly down to 0 in the middle and stays = 0. now the layer lets see trough the blue drawing (i tried to mimic here photoshop kind layer)
now use shading enhancer brush to lighten respectively darken as needed.
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delete layer with blue drawing and fill the grey layer with flat material
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more shading-enhancer work
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use colorizer brush to paint in color. this puts in the color, but keeps the structure we build on in grey.
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use paint brush and draw in additional extras…
in case you find this method interesting, feel free to post your results in this thread. 





