Bzzzttttt... Paddles of life!!!!!
Back lighting... your image has a shadow you want a back light....
Simple highlight around the person... (wand, pen brush anyway ya like)
make a new layer... make a mask so that anything drawn is constricted...
duplicate layer...
the lower one set to colour dodge and turn it don to fifty and with a white brush with a soft edge just highlight the edge...
Then on the layer abouve set the brush to half the size and repeat over the edge folloing the mask area... to get
(legs only for this one...)
vs
basic and if done correctly as in (not a rush job) can look good.