Create a serene scene of a couple walking along with their dog in a picturesque

Create a serene scene of a couple walking along with their dog in a picturesque rural landscape on a bright summer day. The artwork should be done in a detailed fantasy digital painting style, capturing the warmth and tranquility of the countryside. Use vibrant, warm colors like lush greens, sunny yellows, and soft blues to evoke a sense of peace and contentment. The couple should be depicted in casual, relaxed attire, enjoying their walk, while their dog happily trots alongside them.