Hi, thanks for answer. I got what i wanted following your tutorial but using Overlay blending mode, even though it's not perfect. It still get some dots between the surface painted with lines and the one with Paint Bucket that don't get painted (painted red) skydrive.live.com/redir.aspx?cid=0eb17f853b362b4a&resid=EB17F853B362B4A!131&parid=EB17F853B362B4A!105&authkey=!ANlmZjsbblAFkJY. Following your tutorial (Backgroung overlay layer 2) i got a solid color, where those dots whithout are well perceivable (painted yellow), the picture in the midle was made blendig the opposite way.