Yeah looks good. Clearly, you’re a fan of all black attire. The smiling girl might wear grey or blue silk blouse and maybe earrings. I don’t she’s your character. How about some guns? Guy on top left seems to be missing a gun. Will the ai not draw a gun? The molle pouches look like they are for sub machinegun magazines. You can’t go wrong with an MP5. If more retro, maybe a beretta M12 or Swedish k.
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.