So without any clues whatsoever, I'd appreciate Alan K revealing the thought processes he used to solve the puzzle. I'm clueless.
The first tree said "apple" to me, so I looked for images of the world's most famous apple tree (I am assuming that Eve ate some other fruit). Since that tree is related to a gravity guy and the other image was a palm, I looked for references to the other most famous gravity guy and palm trees. That did it.