This early work was drawn using what was to become Warhol?s trademark technique for his commercial illustrations ? the blotted-line. The manner in which Warhol has selected specific areas of the figures to colour and others to leave blank anticipates his screenprinted work of the 1960s. The process involved in screenprinting meant that Warhol had to plan in advance the colours he wanted for different sections. These areas were then printed with an abstract shape of colour, with the final image only coming together once the last layer of black detail was added.