Generating this image was a two step process. The initial image was generated using Bing Image Creator with the following prompt: "space photography, nebula in the shape of the great wave off kanagawa", which produced the following image:

I wanted to use the image as a phone wallpaper, so I used that as the input image for img2img in Automatic1111 with RealVisXL Checkpoint with the following prompt: "a colorful wave of a blue and red nebula, space art, space photography, intricate and detailed,.outer space, nebula in the shape of waves, waves, ocean like". Scaled 2.13x, 0.5 denoise.

For reference, the original prompt that I used in bing image creator generates the following result in RealVisXL:

I could probably get something closer to the bing image with better prompts without using img2img, but I am lazy.