|Some strokes where I've used the mode Overlay or Hue|
to coloring the gray stains.
The mode that I've used to create these images are mainly "overlay" and "hue". The approach is very simple... first you can drawing some strokes in gray values with normal mode active. The canvas can be white or transparent. The next step is change the mode of your brush to "overlay" and to apply the colors on the gray strokes. Is more efficient to have the opacity low between 50 and 70%.
Another interesting possibility is to have a colored canvas and to apply the strokes with 'overlay' mode active in the brush (see below figure).
|Canvas colored with a green pastel where I've applied the strokes with overlay |
mode active on the brush.
|Gray strokes made first and after I've applied the strokes |
with mode Overlay and Hue active.
|Gray strokes painted with Overlay mode directly and some parts I've used |
a transparent layer in overlay mode.