Based on the song Coffin by Black Veil Brides, each flower represents something.
The Black Rose- Darkened Love
Celosia- Burned
Pansy- Thought or Remembrance
The Yellow Hibiscus- Youth, fame and beauty are very much like hibiscus flowers, which have short lives. Although the flowers may die, they do grow back as long as their bush or tree is cared for. Enjoy beautiful moments while they last.
Plum Blossum- A Symbol of Strength