The phrase "a vignette of" is correct and can be used in written English.
It is used to refer to a brief but vivid description. For example, "Her poem provided a vignette of a summer in New England."
She answers with a vignette of what had been lost.
Every window is carefully positioned to capture a vignette of the dramatic landscape.
If ever we needed a vignette of how the modern game operates, here it was.
"It's really just a vignette of images without any underlying narrative.
The barbecue at Woody and Lol's is perfectly amiable as a vignette of summer in England.
The song was a vignette of what it was like being there.
Similarly, in a separate exercise teachers and educators were given a vignette of a 4-year old with behavioral problems.
A group of objects from the house provides a vignette of High Victorian domesticity, with a touch of the exotic.
Bellos sugars his account with a vignette of Cédric Villani, the nearest thing modern maths has to a rock star.
Toxic Girl is a vignette of vanity, but not scathing - bitterness isn't allowed to taint the gentle harmonies.
At one point, as the taped narrator explained a vignette of tiny, stick-figure Bushmen engaged in battle with giant Zulu warriors, Sidney smiled broadly.
