Venus in Pisces, ruler of the Libran ASC is in the 5th, trining Jupiter in Sag. The 5th could be entertainment or sports. Also creativity and impulsiveness.
Maybe erratic and spontaneously unpredictable, with that Mutable grand square, involving the lights, Mars, Mercury, Jupiter and Pluto. Changeable, excitable, anxious, nervous at times?
The Moon in Gemini, ruler of the MC. So perhaps famous for his mind/words/thoughts and ability to communicate? If he is writer, I’d think it was more spontaneous type of work, like opinion pieces.
But that Mars conjunct the Moon is very physical and very emphasized. An opposition and 3 intense squares create powerful competitive urge. Maybe he is a fighter/boxer? Sports gambler?
I think he has had a difficult emotional life because he takes everything personally? The Mars inconjuncts the Saturn in Cap—so he might not like authority figures too much. Maybe he likes to do things his own way?