Rainbows often symbolize transfiguration, and behave as a bridge between earth and paradise.
The Blue Meanies represent the bad people on the world.
Color yellow represents the sun and light. The color is also related to the human mind and intellect. It is optimistic and cheerful.
The big green apples are a reference to the Apple Records music label.
The butterflies represent transformation and hope, they are also related to rebirth.
Doors represent a passage from one place to another, between different states, lightness and darkness. The act of passing over the threshold signifies that one must leave behind materialism and personality to confront inner silence and meditation. An open door means welcome and invites discovery and investigation, while a closed door represents rejection, protection, secrecy, exclusion and imprisonment.
The sea is a symbol of life. A journey across the sea can be seen as a symbolic journey across the "sea of life"
The shaking hands symbolize peace, frienship and alliance, while the blue hand represents fear and destruction.