How to create glowing colours with oil paints

A well with strange coloured flames billowing out of it

Being asked to describe my painting technique is odd for me, and frankly it’s hard to do. I’m an intuitive painter, with no real process, I usually invent things as I go along – every painting becomes one big experiment. When I do it, I tend to learn a bit about myself, too.

My painting for this workshop is based on the HP Lovecraft story The Colour Out of Space, in which a meteor falls to Earth and lands on a family farm. The meteor emits strange radiation and gives off powers that alter life forms that come into contact with them. In the story the alien radiation drains life from its surroundings. Then fungus takes over and because of the unearthly radiation, is mutated in indescribable ways. The ‘colour’ in the title is an unseen spectrum of alien colours. 

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Bob Eggleton’s been illustrating science fiction, fantasy and horror since 1983. He’s worked as a concept artist in films such as Jimmy Neutron and Star Trek, and has won nine Hugo Awards as well as 12 Chesleys, two Locus Awards, and a Rondo.
With contributions from