"Create an illustration of a content and serene cartoon tiger sitting with its eyes closed and a gentle smile, showing soft stripes and a fluffy texture. The tiger should have a playful yet calm demeanor, with its head slightly tilted in a moment of enjoyment. Use a soft pastel-colored background with minimal elements, like a few simple plants or flowers, to give a sense of a peaceful natural setting. The lines should be organic and flowing, with visible brushwork to add texture and depth, reminiscent of a hand-painted piece."