The phrase "an excellent model of" is correct and usable in written English.
You can use it to describe something that serves as a great example or representation of a particular quality or concept.
Example: "The research paper presented an excellent model of how climate change impacts biodiversity."
Alternatives: "a prime example of" or "a superb illustration of".
Her project is a pathbreaking study that is an excellent model of pioneering basic research.
In the big picture, Tikal serves as an excellent model of us today, because we're following the same trajectory".
The brain, behavior, and cognition of songbirds have provided an excellent model of human cognition in one domain, namely learning human language and the production of speech.
The immune system constitutes an excellent model of adaptive cooperation at the local level and of emergent behaviour at the global level.
The male heterozygous TG mREN2 27 rat (TGR) harbors the mouse transgene for renin, exhibits local tissue elevations in ANGII and is an excellent model of both hypertension and insulin resistance associated with defective insulin signaling.
The International AIDS Vaccine Initiative provides an excellent model of such initiatives.
Chromosome 6 (Ch6) provides an excellent model for integration of these two tasks.
To address this experimentally we have chosen the frog Xenopus, because its development constitutes an excellent model for embryogenesis of vertebrates [18].
Gray mouse lemurs (Microcebus murinus) from Madagascar present an excellent model for studies of torpor regulation in a primate species.
Domestication is an excellent model for studies of adaptation because it involves recent and strong selection on a few, identified traits [ 1 5].
Severe flower wilting occurs reproducibly within 36 hours, providing an excellent model for investigation of petal senescence and programmed cell death.
