That's Zeus propositioning her. I chose this image in particular because it shows off her very Grecian off-duty costume to such good effect. WW aficionados will remember that in the Golden Age Wonder Woman had a golden eagle on her chest which was changed to a stylized WW in the Bronze Age. With this off-duty version of her costume, Perez was able to give us both.

Incidentally, at a con in '88, George Perez related that he intended for Zeus to be a redhead, since gods are, you know, immortal and don't age, but the colorists gave him white hair in the first issue and after that we were stuck with it.

Wonder Woman politely declines the god's offer, which you can expect didn't go over too well. As a penalty, she must go down into the caverns beneath Paradise Island, which it turns out is where all the monsters from Greek mythology have been kept for the past 3000 years, and kill them all. In short, they made her into the hero of a Greek epic in the tradition of Jason or Perseus. How could someone who watched The Clash of the Titans in her childhood resist? Especially given her full armor below. She still has the star spangled leotard, of course, but it's armor, not just an outfit, and it's just the minimum part of the full array which she wears here:



So what do I love so much about Perez's Wonder Woman? Well, this page from the first issue is a good example of one reason:


Notice that although all of the Amazons are beautiful women, they are not in the least provocative. How many comic book artists have the guts to draw well-built women in a non-exploitative way? These Amazons don't stand around in skimpy armor with their chests stuck out, they carry themselves like athletes, quite rightly.

Also, George Perez was the first person since Marston died to be true to the character. Most of the other writers who've handled her didn't really know what to do with her and settled for making her a Superman in drag. Perez went back to Marston's original work and used the elements there. Not all of them; he thankfully left out the bondage and the astral projection and the utopian psychology, which I enjoy tremendously but only as Golden Age crack, but kept the two essential things that made Wonder Woman different from every other superhero: Greek mythology and feminism. He made those the chief point of her character and her stories. He also thought about what she would be like, having been raised on an island that is practically paradise by warriors who have been at peace for millenia, and so her personality is simultaneously innocent and valorous.

Here is the very last page of the first Perez issue, when Diana first dons her new armor after having won the tournament to choose the Amazon champion: