Easily replicated with Butterick 5315:
But check out the bottom detail:
This definitely takes the dress from Old Navy to Kate Spade price tag territory. They're bias cut strips of fabric, but how are they hemmed? How are they sewn on? I can't spot topstitching. And how are edges where the "x's" meet finished so perfectly?
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What do you think of the magenta tights? I totally love the look, but perhaps it's too much, too girly, for office work wear? Unfortunately, I feel that wearing such a shocking color in a very untraditional way is not apropo for a corporate environment. Sigh.