This picture of Marvin looks exactly like the description given in the book. Marvin is a unfathomably intelligent robot who is severely depressed because he has nothing in life that challenges him intellectually. He eventually ends up becoming so bored and depressed that he explains his life story to a nearby spaceship and that ship then commits suicide.
I believe that this picture of Venus looks a lot like the Mythical Margathea that is described in “The Hitchhikers Guide To The Galaxy”. Its dark and empty surface really captures the descriptive image the author described. I got this picture from Pics4learning.com.
This picture describes many key symbols and items that are contained in the book. Such as 42 is the all knowing master computer meaning to life which can be interpreted in many ways. It also shows the motto of The Hitchhikers guide to the galaxy which is don’t panic and it will answer all of your questions.