The blue cardboard nr 01 has a 3D effect where I have been bending the cardboard and after I have used an antique frame, painting it black and used the original old painting for my artwork. I have turned it around and used the backside of the painting. This one is (SOLD).

The blue colour is painted with linoleum, same goes for the yellow and black. I have used a pencil for the lines and the top shape.