Based on the prompt information we have, "–v 4 –ar 3:2" are options that are provided to Midjourney. -v 4 indicates version 4 of their model (which produces ver

Based on the prompt information we have, "–v 4 –ar 3:2" are options that are provided to Midjourney. -v 4 indicates version 4 of their model (which produces very aesthetically pleasing output) and -ar 3:2 specifies an aspect ratio of 3 by 2.