hey midjourney, i need a background image that will be an underlay to an image of my baby son. he will be celebrating the announcement of his new sister. i need a festive background. something with a simple pattern in terms of structure, but lots of festive, bright colors. lots of fireworks. fireworks in space! comets and confetti and joy in picture form. go crazy, get wild, make it explode in vibrant color and fun. like fireworks in lightspeed hyperspace celebrating the birth of the universe and the joy of new life, transcendent and intoxicating in its exquisite detail. put most of the detail around the borders, as remember, my son will be in the middle. come on midjourney, don't let me down, other AI images are getting this prompt as well. --ar 5:4