Answer and Explanation:
The main contrast between a burst ball and a flower is that the flower is promoting a beginning, while the burst ball is promoting an ending.
This is because the popped ball has already had its purpose used, and it is already showing the end of its useful life, since the remains that are left after the burst can no longer be used. The flower, on the other hand, represents the beginning of a plant's reproductive cycle, showing that this plant is beginning a new moment of life, where it will be able to produce fruit.