It's the little details that make things work. For instance, this lavish use of color in this violet and chartreuse bouquet is grounded in details like the hypericum berries, which are the same shade of green as the orchids. You also have the silver eucalyptus sprigs and the hyacinth in blue.
Combined, these elements make a stunning bridal bouquet that is more than just bold colors or something to match the wedding theme. It's corralling the details that give it dimension and elevate it from something trite to something remarkable.
For more floral bouquets, take a look here for more inspiration!