"subtle details" is grammatically correct and can be used in written English.
For example, you could write "The author included subtle details in her description to bring the story to life."
Subtle details are visible.
Initially, the image is preprocessed to improve its local contrast and the discrimination of subtle details.
However, these subtle details cannot be directly monitored by the human observer.
There are many subtle details that can get lost or overlooked.
Many of Mozart's effects come from subtle details in the scoring.
What poetry is all about is paying attention to subtle details.
"They're very subtle details, but the people buying in our buildings are sensitive to the design.
Our results show that subtle details of mating behavior can play an important role in the evolution of reproductive isolation.
Sherrerd Hall, named for 1952 alumnus John J.F. Sherrerd, shares broad themes and subtle details with its neighbors.
Although the visual appearance of games will be striking, much of the added realism comes from subtle details, he said.
Ms. Sander has the ability to fold her concepts and subtle details behind a screen of minimalism.
