beautiful by nature

i was looking for flowers to use in my wedding and came across some amazing images.  i think these will be beautiful in your bouquet or centerpiece.  my choices are down to peonies, dahlias or ranunculus.  anyone know a good place to find them in singapore?  i don't remember seeing something so fancy at the far east flora.

Dhalia

Ranunculus
Photo by Yevette Inufo

Peonies