I'm not a fan of the costume. As a lifelong comic fan I'm just like "meh" about the whole thing. The tiara is kinda understated, the gold accents aren't very shiny, and the pants and boots are very blue. Not even royal blue - just blue. And the blue of the pants and boots clash horribly. I know they were trying to go with the look she currently has in the comics but, well, they kinda missed the mark I think.
For those who don't know this is how the current suit in the comics looks:
As you can see it's basically that attire for the most part sans jacket.
This is what I think would look better as far as tweaks to the TV series costume are concerned (mine is on the right):
Through the magic of Photoshop I made the blue on the pants darker, the boots red (what in the hell were they thinking with blue boots?), made the gold armor pieces pop some more, and added some stuff to the tiara. It looks way more Wonder Woman-esque this way. My opinion of course.