The phrase "a brief impression" is correct and usable in written English.
It can be used when summarizing or conveying a quick overview or feeling about a subject, person, or experience.
Example: "After attending the conference, I have a brief impression of the key topics discussed and the speakers' expertise."
Alternatives: "a quick overview" or "a short impression."
It arrived early, made a brief impression and slipped away.
That was all the lead Grosjean required, and on the changeover McEnroe did a brief impression of his older brother when he was slapped with a warning for unsportsmanlike behavior after using an expletive while complaining to Egli.
O'Donnell, often referred to in Whitehall as GOD for more reasons than his initials, gave a brief impression of a goldfish before replying: "It's a question of what you define as the post, but I think in general terms they – well, I'm just trying to think who would have been the equivalent before".
Finally, a brief impression is given of the impact of a specific set of policy measures on the market penetration of electric vehicles in Germany until 2030.
The modern Players' Theatre Club provides a brief impression of contemporary music hall in the film The Fourth Angel, where Jeremy Irons' character creates an alibi by visiting a show.
We drove the H2 for a few hours both on- and off-road, and based on that brief impression, we have a fair taste (albeit not a definitive one) of what owning one would be like.
North is quick enough to agree, albeit with a smile and a brief De Niro impression.
My first brief impression — that he was repairing or tampering with the lock on the door — was quickly replaced by one of unmistakable supplication.
His brief impression of silent movie footage is so fast that it makes you want to check the video for trickery.
But I fear from this brief impression that Carpenter has coasted too long on his looks and let his profile do his acting for him.
Day one would witness a mass execution of popup windows; brief impressions of consent obliterated by the barely conscious mouse clicks of a billion mildly frustrated users.
