Purpose- I Think the purpose of this ad is to sort of give you the feeling that purchasing the brand Skyy Vodka will give you some sort of power (You're thee man!), and even the attraction of a lady. Given that the guy is standing above the female with the alcohol brand in hand and fully dressed in a professional, classy, suit. Face it sex sells! When there's a female in an ad wearing a bikini and showing off her assets, I feel it will definitely cause attention. Notice that the female is lifting her sunglasses up. I've always felt that when anybody lifts their shades up and staring, that the male in the ad caught the females attention. 

Audience- This ad is targeting a 21+ crowd, possibly more toward men who feel desired to be successful and the fantasy of power and an attractive female on the side. Of course that may not be it but given that the female does look of a younger age.

Genre- I am not really sure what kind of genre this ad is representing, but as a guess I would say modern. It does compare to other alcohol ads as well. Theirs usually always an attractive female In Ads such as these.

Tone-  With the vibrant blue and light colors, I would say the tone is very relaxed and fun in this ad. It's a sunny day and why not get intoxicated, is pretty much what this ad is trying to go for.