From left to right:
The woman on the left looks reasonably good. However, she looks like an entry-level greenhorn because of (1) her long teenage hair and (2) lack of accessories such as earrings and a belt. A little (3) lipstick would also give her a more professional and powerful look.
The man next to her (4) wears a white shirt with (5) jeans. White shirts are very formal and are usually worn with a dark power suit – or unbuttoned to reveal a hairy chest, a la Tom Ford, the fashion designer. Jeans do not even faintly resemble professional attire; and his wide belt is too sporty.
The woman in the middle (6) wears a shirt in a blah pastel, causing her to look washed out and passive. Her shirt is (7) not tucked in, so she looks like she is ready to do chores instead of working in an office. She (8) wears no accessories, such as a belt and earrings; and (9) teenage makeup (lip gloss).
The next woman has (9) teenage hair and (10) makeup. She wears (11) no accessories. She will be given the benefit of the doubt with regard to her white garment. It is possible that it is a dress; however, if it is a long top worn in the teenage style (hanging out below the length of the jacket), she would lower her credibility.
The man on the right wears his (12) tie too short, looking somewhat clownish as a result. He also wears his (13) trousers too low, giving a less classy appearance and also suggesting that he has a hanging paunch. The last item isn’t truly related to a professional look, but rather, to aesthetics, so it won’t be officially counted: he needs to let his hair grow a bit fuller at the ears and have it just barely cover his ears, somewhat like the man to the left. The current “line” of his hair is not flattering.
Lastly, everyone has (14) arms crossed. This will be counted as one error; because, no doubt, either the photographer or the group chose to have a uniform look. Crossed arms create a psychological barrier and can suggest any number of subtle but negative things. The woman in the center personifies the most common result. Rather than a full smile, she has a resolute look of inflexibility, suggesting that she won’t budge on her position.