The phrase "dress justice" refers to the idea that the way we present ourselves through clothing can affect how people perceive us and whether we are treated fairly and impartially. Full definition
I wore a Halston Heritage gown, but didn't get pictures to do this gorgeous dress justice. (zoewithlove.me)
The picture does not do this dress justice. (torrid.com)
Despite wanting to do Jane's dress justice, I also wanted to end up with a dress I'd wear, so I opted for a fuller skirt than hers. (astitchingodyssey.com)