Simple:
* Her writing style is highly idiosyncratic, full of unusual metaphors and strange sentence structures.
* The museum's collection showcased the artist's idiosyncratic use of color and texture.
More complex:
* Despite their shared profession, the two architects had wildly idiosyncratic approaches to design, one favoring minimalist lines while the other embraced elaborate ornamentation.
* The company's success stemmed from its embrace of its idiosyncrasies, creating products that appealed to a niche market with unique tastes.
With a focus on the individual:
* Her idiosyncratic sense of humor often left others confused, but those who understood it found it endlessly entertaining.
* His idiosyncratic fashion choices made him a recognizable figure on campus, a walking testament to his personal style.
Remember: "Idiosyncratic" implies something unique, peculiar, or even quirky, often in a way that is characteristic of a particular person or thing.