The phrase "are perfectly representative of" is correct and usable in written English.
It can be used to indicate that something accurately reflects or embodies a particular quality or characteristic.
Example: "The results of the survey are perfectly representative of the opinions held by the majority of the population."
Alternatives: "are a true reflection of" or "accurately depict".
Some tracks are weird or funny, presumably put there for that reason; some are perfectly representative of a style; some are unlike anything I've ever heard.
For all I know, contemporary Norwegian children are perfectly representative of all human children throughout history.
But the moonrocks, with their soft, green-gray hue, are perfectly representative of Kanye's earthy color palette as a designer.
Therefore, the findings may not be perfectly representative of the target population and not generalizable to the entire population of prisoners in the United States.
While all HINU students are enrolled members of federally recognized tribes, it is possible that, by having already chosen to pursue postsecondary education, they may not be perfectly representative of their tribal populations, the majority of whom do not attend college.
This scene is perfectly representative of the success and appeal of the show, which is grounded in reality.
The study is "area-based" and no selection was made of patients or of medical facility - it is perfectly representative of the real circumstances of an Italian region.
Because the focus of the Quinte Longitudinal Study was to examine changes in gambling over time, it was not essential that the sample be perfectly representative of the Ontario or Canadian population (only that it contained a diverse range of gamblers).
Although it was not critical that our transcriptome be perfectly representative of normal patterns of gene expression, we initially held concerns that a transcriptome derived from necropsy samples could be dominated by transcripts involved in cell death.
