Here are a couple more illustrative portraits I’ve just finished that will be at Artdromeda.
(Click on either image to see it larger)
The imagery in the background is based on the photograph taken by Voyager 1 of Earth which inspired Sagan’s Pale Blue Dot.
As reference for Sagan, I used a public domain photo from NASA.
The likeness of Bradbury is based on a Creative Commons licensed photo from the Miami Dade College archives. As per the terms of that particular license, my painting is also available under the same CC license.