Which of the following best describes informal floral arrangements?

Informal floral arrangements are characterized by their relaxed and free-form designs that do not adhere to strict patterns or symmetry. This style allows for a more organic and natural look, often reflecting the beauty found in nature. Such arrangements often embrace variety in shapes, sizes, and colors, resulting in a more dynamic and spontaneous appearance that can evoke a casual or whimsical feel.

In contrast to the incorrect options, which focus on strict guidelines, single species, or formal designs, informal arrangements prioritize creativity and individual expression. This allows florists to experiment with different flower types and placements, thus creating arrangements that feel more personal and less structured. The essence of informal design lies in its ability to seem effortlessly beautiful, showcasing an artistic interpretation rather than a rigidly defined structure.