SONS of ORAR Painting 10/10, Coolness 10/10 @ 2009-12-30 16:43:48 the soot and fume stains around the extractor is done by layering thinned down citadel inks with an airbrush.. the achive grease around the barings the area was painted with acrylic thinners and the black and brown ink alowed to flow off the brush arround them..