The phrase "a dramatic illustration of" is correct and usable in written English.
It can be used when you want to emphasize a striking example or representation of a particular idea or concept.
Example: "The recent events serve as a dramatic illustration of the challenges we face in climate change."
Alternatives: "a striking example of" or "a vivid representation of".
At the global level, Worldmapper is very useful for relative measures and provides a dramatic illustration of global disease burden; it illustrates unequal access to care and rich-poor mortality gaps.
The case is a dramatic illustration of the gulf in funding between men's and women's sport.
"Divisadero" is a dramatic illustration of how Mr. Ondaatje follows that same precept.
The Graphic published a dramatic illustration of the escapade, showing a shifty-looking lion emerging from a tent.
The affair is a dramatic illustration of the conflict between commercial and intellectual values in the contemporary academy.
BARRY RITHOLTZ directs us to a dramatic illustration of the extent of the subprime losses at the world's top financial institutions.
In pre-Revolutionary Russia may be observed a most dramatic illustration of the disproportion that may exist between a children's and a mainstream literature.
This has become the iconic image of Josh Fox's documentary examining the dangers of natural gas extraction, Gasland, and for good reason -- it's such a stark, dramatic illustration of the damage energy companies are willing to inflict on both the environment and human lives as they attempt to extract natural gas using the controversial method known as hydraulic fracturing, or "fracking".
A particularly dramatic illustration of the programme's impact was with adolescents' reports of whether parents taught them how to use condoms.
We saw a dramatic illustration last week when the European court of justice handed down a judgment on a case involving a Spanish lawyer, one Mario Costeja González, who objected that entering his name in Google's search engine brought up embarrassing information about his past (that one of his properties had been the subject of a repossession).
"This is such a stark and dramatic illustration of how serious the problem is," said Ron Elwood, a lawyer at the Legal Services Advocacy Project, which lobbies in the interest of low-income residents.
