Humor is a character strength because it requires effort and brings joy to all. Awe is similar, combining Gratitude with Spirituality to appreciate majesty and mystery. Awe is essential to develop a sense of Transcendence and to worship.
Curiosity is the desire for new experience and knowledge, adventure, and discovery. Creativity combines Curiosity with imagination, critical thinking, and effort. Creative effort must be both unique and useful to qualify as a character strength.