colorful hand-drawn butterflies on white background: simple and whimsical art

childrens colorful handdrawn butterflies whimsical art illustration butterfly drawing simple vibrant playful creative cheerful cute pastel set nature sketch doodle artistic blue pink yellow wings decoration design abstract imagination flora fauna decorative childlike fun joyful serene charming minimalist educational inspiration hobby crafting texture delicate light airy outline symmetry beauty garden hand-drawn white background: