"a great representation" is a correct and usable phrase in written English.
It can be used to describe something that accurately and effectively portrays or reflects a particular concept or idea. Here is an example sentence: "This painting is a great representation of the beauty and tranquility of nature."
It is a great representation of the city's fascinating history.
'Her writing is a great representation of who she was,' says Sasha Eden.
Theme or no theme, the stories are a great representation of the club-night.
As the list stands, it's a great representation of the different tastes and opinions of the judging panel.
"It's a great representation of the angst, the unknown, and the dangers that lurk out there for anybody growing up in America".
The coconut prawn (served inside a coconut) called Daab Chinguri is a great representation of all that is great about this cuisine.
As well as having opportunities for people from a wider span of employment backgrounds, she points out that you have a greater representation of society.
The programme combines a more streamlined main competition – 18 films as opposed to 23 last year – with a greater representation for female film-makers, finding room for an unprecedented 20 women directors in the event's various sections.
With the growing popularity of the treatments, the F.D.A.'s advisory panel on general and plastic surgery devices met to weigh whether the agency should require makers to conduct longer-term and larger studies with a greater representation of skin types, and histological studies of tissue response to injected particles.
There's even an Israeli study that finds that the more girls in a school class, the better both boys and girls do on test-taking, and another one that finds that orchestras with a greater representation of women have improved organizational performance in the long run, at least as perceived by the players.
