I specified the clothes color for the two in the left, but not the two on the right, and they came out black anyway. I picture the guy on the bottom right wearing like a white lab coat more often than black.

Since it’s focusing more on headshots and it’s the near future, I didn’t give it fun details. The top left guy is zoomed out enough that he could have a gun but it can be hard to get midjourney to listen sometimes.