Creating floral designs that catch a viewers eyes is a skill which good flower designers have. Just like an artist who creates a piece of artwork that captures the viewers attention, the florist needs to be able to create a design that pulls a viewer into a floral design. When pullled into the design, the viewer experiences something that must be good about the designer. It will help them to think positively about the designer.
If the flowers appear too bunched up, try cutting them at different lengths for more variety. Don't worry if some blooms don't stay in exactly the right position at first. Continue to the process by adding more flowers, adjusting their height and position as you go. The stems should all fit comfortably in the neck of the container and begin to hold their positions better as more flowers are added.