Found this clip on Youtube. I have to say I like Gal's accent. I'm an American and i like the idea of WW having an exotic sounding voice.
Also there has been a firestorm of criticism on tumblr and other sites about the casting. Specifically that the former MMA fighter Gina Carano turned actress (seen in the above clip with opposite Gadot) not being cast as WW. A quick YouTube search and you can pull up a number of her fights. She tough and very talented fighter. Carano was also the inspiration for the character Korra in the Avatar series.
Looking at her photos and at her fight videos. She does resemble what people imagine WW should look like in comparison to Gadot.