Not the vibe I'm getting from that teaser image! But this is definitely the best way to pull off that character, design wise, but we will have to wait and see if the film+the actress lives up to the part!
Muted colors works for every DC hero for some reason. I'm not sure why. Marvel's never really needed too but I have loved all of DCs redesigns to make everything look just a bit more natural and realistic. Some may call it overkill but I really like it. Wonder Woman has deserved a film for decades now.