Agree with Robert. Picture of girl leaning on bar seems to have two lights, slightly more powerful one on left, both are behind and to one side of subject, about shoulder height and quite close (see how the girl's shoulder (her right) is more brightly lit than her face). Light looks a little harder than you might get with a softbox, the most controllable type of light here would be spill-kill (small) reflectors with barn-door attachments (gadget that fits on the front of the spill-kill, which will commonly have a diameter of 210 mm, and has four hinged flaps to control distribution of light).
Picture of guy on left has one light, fairly directional, to right of subject, somewhat behind and above him. Picture on right looks as if it is lit with one big spotlight, same light for subject and background. No way of knowing if the lights used were strobe or continuous, although suspect pic on extreme right used continuous theater-type spot.
Regards,
David