Create a playful illustration featuring four cartoon insects standing together. One insect should have large expressive eyes and alternating stripes, resembling a caterpillar. Another can be a rounded creature with spots and a wide smile. The third should have long antennae and a teardrop-shaped body, while the fourth can be a butterfly-like insect with curved wings and a cheerful expression. Surround them with whimsical, flowing patterns and bubbles, ensuring the background is lively but not overly detailed.