Please create a series of watercolor clipart illustrations featuring different items related to spring. Each illustration should be drawn in a charming and playful style that captures the beauty and vibrancy of the season. Items to include can be flowers, butterflies, birds, bees, rain boots, and umbrellas. Please use a coherent color palette that is bright and cheerful, but also soothing and calming. Colors that are associated with spring, such as greens, blues, pinks, and yellows, should be us