What do the 4 pictures on all the books mean?

Twilight- Stephenie Meyer has stated that the maçã, apple on the cover represents the forbidden frutas from the book of Genesis. It symbolizes Bella and Edward's love, which is forbidden, similar to the frutas of the árvore of Knowledge of Good and Evil, as is implied por the quote from Genesis 2:17 that is quoted at the beginning of the book. It also represents Bella's knowledge of what good and evil are, and the choice that she has in partaking of the "forbidden fruit", Edward, or choosing not to see him

New Moon- stephenie said she had no choice in her cover art on her website and that she doesn't know what it means.
but here....
The meaning of tulips is generally perfect love. Like many flowers, different as cores of tulips also often carry their own significance. Red tulips are most strongly associated with true love... White tulips are used to claim worthiness or to send a message of forgiveness. Variegated tulips, once among the most popular varieties due to their striking color patterns, represent beautiful eyes.A Turkish legend may be responsible for the red tulip's symbolism. The story goes that a prince named Farhad was amor struck por a maiden named Shirin. When Farhad learned that Shirin had been killed, he was so overcome with grief that he killed himself - riding his horse over the edge of a cliff. It's said that a scarlet tulipa sprang up from each droplet of his blood, giving the red tulipa the meaning "perfect love."

Eclipse- The broken ribbon represents choice, as in the book Bella must choose between her amor for the vampire Edward Cullen, and her friendship/love with the werewolf Jacob Black. Meyer also stated that the ribbon represents the idea that Bella can't break away completely from her human life.

Breaking Dawn- Breaking Dawn's cover is a metaphor for Bella's progression throughout the entire saga. She began as the weakest (at least physically, when compared to vampiros and werewolves) player on the board: the pawn. She ended as the strongest: the queen. In the end, it's Bella that brings about the win for the Cullens.
As far as I can tell it's a portrayal of bella, since the book revolves mainly around her. I think that the pawn shows her as her human self, weak, vulnerable, and not as able as other pieces in the sence that the pawn has a very limited range of motion. On the other hand, the queen is the most powerful piece, with the least limited range of motion of any chess piece. I think that this represents bella as a vampire, since she is so strong. Also, the colour seems to back this point up. Bella was always blushing as a human, hence the red pawn, it represents the blood running through her...then, when she becomes a vampire the blood is gone and she becomes as pale as the other vampires, hence the white queen.

Twilight- the maçã, apple is on the cover because it is the forbidden friut
new moon- the falling petal is bella when edward left
eclipes- the longing strand of the ribbon stands for her amor for edward and the shorter for her amor for edward
breaking dawn- the little chess peice is her as a human then the bigger one when she becomes a vampire

everyone is saying the picture of the tulipa with red on it means nothing it is just there for look's, I disagree, if you have read the book even just the first chapter at Bella's party you would get it. It is in that first chapter were the tulipa with blood on it is. If you have read it then you should know that the reason the Cullens leave is because they dont want Bella to get hurt. The tulipa with blood on it is when Bella falls and cuts herself and the blood gets all over the flores and Jasper attacks her. So the tulipa with blood on it is when Bella falls at her party, thats were it came from I think and so do my friends.

My opinions
Twilight u cant have an appel without the core to edward bella is the "center" of his world
NM when edward leaves it crushs her just like the tulipa is a "cruppled tulip"
eclipse the ribbion jake gives to bella with her bracelet
BD they have to think 1 step ahead of another to finissh the book or it seems like a game just like in chess u have to think 1 step ahead of the other player

in the first pages there is a verse or poem when you read it you see what the picture means\

Twilight -- The maçã, apple on the cover of Twilight represents the knowledge of good and evil. Eve ate this forbidden frutas in Genesis, and Twilight has an epigraph from this book of the Bible: "But of the árvore of the knowledge of good and evil, thou shalt not eat of it: for in the dia that thou eatest thereof thou shalt surely die." The pergunta inherent in the maçã, apple is "Do you want to know?" It asks if you are going to bite in and discover the frightening possibilities around you or refuse and stay seguro in the comfortable world you know.

New Moon -- Unlike the other covers, Stephenie was not involved in choosing the cover for New Moon. The author originally proposed a clock image, as time is such a key theme in the book. But ultimately the team that chose the tulipa focused on the theme of loss. The image of the flor losing its petal was chosen to reflect that. They felt the fallen petal could also be interpreted to represent the drop of blood from Bella's paper cut in the first chapter.

Eclipse -- The not-quite-broken ribbon on the cover of Eclipse is a metaphor for Bella trying to leave her human life behind her, but being unable to make a clean break. There are some threads she is unable to cut - she can't completely divorce herself from her past.

Breaking Dawn -- The two chess pieces on the cover of Breaking Dawn both represent Bella. They show her moving from the least significant player, the pawn, at the beginning of the Saga to the most important player, the queen, at the end of the series. The chessboard also hints at Breaking Dawn's resolution, where the battle with the Volturi is one of wits and strategy, not physical violence.

~ The Twilight Saga: The Official Illustrated Guide ~

Twiligh- the maçã, apple is like the forbidden frutas like Adam and Eve because Edward and bella were not supposed to be together

New Moon- it was a wilting flor it was bella wilting because Edward and the Cullens had left forks

Eclipse- it was a to halves of a ribbon one side was Edward and the other Jacob and she was torn between having to choose between her best friend the she loved and her boyfriend the one she loved even more

Breaking Dawn- the pawn I the back was bella in the past being a weak human and the blood still running through her veins that is why it is red and the queen piece was bella now that she was a vampire strong no longer weak like she could handle anything and white because she no longer had any blood I REALLY HOPED THIS HELPED IF IT DID BEOME MY fã ALSO BECOME A fã IF YOU LIKE MY PIC