I have been fiddling around with some color styles for the BW office sketch I posted some days ago since I thought it could be a bit more interesting than only BW images.. I have made it with 2 tone light and shadow colors, then a linear burner color, blue spot color and white to make some interesting variation. In the end i have mixed the styles over each other instead of hue saturation filter (that seems to loose color in the transaction fade)
And now I look forward to try it on other sketches:-)