The phrase "mask-like face" is correct and usable in written English.
It is typically used to describe a person whose expression has become emotionless, rigid or impersonal. For example, "When Brian walked through the door, his mask-like face revealed a sense of utter emptiness".
His pale, mask-like face is eerily inscrutable, the keynote of his evil.
Baron also stars (Peter Falk, for whom the role was meant, got another job instead), and I suspect that it's for the best: the existentially bleak hit-man tale is shattered by Baron's scrutiny of his own blank mask-like face.
"He had a mask-like face, I remember, but it was quite extraordinary to sit behind him and watch his younger self on the screen". Observer editor John Mulholland accepts that many readers will find Sundays less rich without French's film column.
Even more vivid is the debt that would be owed to Wigman by the legendary butoh dancer Kazuo Ohno: the mask-like face, the movement language and sense of inwardness in this extract from The Dead Sea all seem influenced by Witch Dance, below.
Above and below the central chamber are two other areas, called Kether and Malchut, respectively, each of which houses a display screen with a mask-like face that provides the player with information about the next task.
Other recognized motor signs and symptoms include gait and posture disturbances such as festination (rapid shuffling steps and a forward-flexed posture when walking), speech and swallowing disturbances including voice disorders, mask-like face expression or small handwriting, although the range of possible motor problems that can appear is large.
Other works feature doll-size human heads with mask-like faces, an effort to generate more poetic resonance.
The spectacular choreography of the court, with its mask-like faces and height-doubling wigs, are wonderfully paced and controlled.
I recall my thrilled first exposure, as a teen-ager, to one of his long-necked women, with their piquantly tipped heads and mask-like faces.
In the 21st century, robots with mask-like faces, plastic anatomies and friendly handshakes can, and do, draw on the ways artists have tried to reproduce the look and feel of human life for centuries.
In 2015 archaeologists uncovered a previously unknown residential building with beautifully preserved decoration: floor mosaics with abstract and figural patterns, marble facings, wall paintings with red and yellow panels divided by delicate vegetal motifs, and ceiling frescoes populated by mask-like faces, griffins and sphinxes.
