Create a joyous promotional poster in a vibrant digital painting style

Create a joyous promotional poster in a vibrant digital painting style, capturing the excitement of a riverside fireworks festival. The artwork should feature a bustling crowd of diverse individuals, all gathered along the riverbank with expressions of awe and happiness as they watch the night sky illuminate with an array of colorful fireworks. Incorporate vivid colors and dynamic lighting to mimic the glittering reflections on the water's surface, enhancing the festive atmosphere. The poster must also include bold and celebratory typography announcing the event, with details elegantly integrated into the lively scene, <lora:poster2-000040:0.6>