The phrase "a bony face" is correct and usable in written English.
It can be used to describe someone's facial structure, particularly when referring to prominent bones or a thin appearance.
Example: "After months of illness, she emerged with a bony face that reflected her struggles."
Alternatives: "a gaunt face" or "a skeletal face".
The colonel is a thin man with a bony face and big hands.
In the papers there were pictures of a frail man with a bony face, a hooked nose, bushy hair.
His first shot pierced the eye of an old buck with a bony face and a long, grim snout that curled like a brass coat hook.
Pierson, 40, has a bony face, a willowy build, and a generous head of brown hair, all of which make him look like your basic Romantic poet.
Recently, though, at the college mailboxes, Agnes has caught sight of a tall, thin man with a bony face and blondish hair, and he has caught sight of her.
A typical pen portrait of someone wandering across Libby's critical gaze: "she was somewhere north of 50, with dark, darting eyes that bulged out of a bony face" and "the shiny coating of someone on too many pills".
I went there one day this winter, and after a short wait on the fourth-floor landing, a massive wooden door swung open, and I found myself facing a distinguished-looking man in brown tweeds with a long, bony face and pale brown eyes.
Mr. Hayes is a quiet per son, with intense blue eyes set deep in a long, bony face that seems melancholy until he smiles.
To begin with, he looked younger than Nola: very tall and ugly, diffident and smiling and stooped, with a long bony face and hair like crinkled pale silk.
He had a very bony face, and his pitch-black hair was straight and lank; his teeth were too numerous and too large for his mouth, but he was charming when he smiled.
Hovering along the steep, bony face of a dying coral reef, some divers bored holes into the hard surface with compressed-air drills that released plumes of glittering bubbles.
