The new Wonder Woman (Gal Gadot) in 2016 looks angry and mean. Would Megan Boone have been a better "successor" to Lynda Carter (who played WW from 1975-1979)?
Having said that,
in an interview Gal Gadot reveals perhaps why her version of Wonder Woman is angrier and meaner ... she is now "very experienced", especially about dealing with "Man".
“The Wonder Woman that you see in ‘Batman v Superman’ is a woman who has been around, and she’s very experienced. She understands a lot about man. Whereas in the standalone movie we
are telling the grown-up story. Diana becoming Wonder Woman, and this
was a story that was never told before. When she starts this journey,
she’s very pure. She’s more naive, she’s this young idealist who does
not really understand the complexities of life and the complexities of
men.”
So that's the secret ... Lynda Carter played a "pure, naive, young idealistic Wonder Woman". Don't you just love the 70s!!!