I personally believe some if not many artists and illustrators live 24/7 in their imaginary worlds. Viktor Pyatkin is not an exclusion but a real proof of this concept, take a look at characters and visual stories coming straight out of his head

http://feedproxy.google.com/~r/Designcollector/~3/KK0VLfnMWGk/viktor-pyatkin-and-his-imaginary-world