The phrase "a much larger work" is correct and usable in written English.
It can be used when referring to a piece of writing, art, or any project that is significantly bigger in scope or size compared to something else.
Example: "This article is just a summary of a much larger work that explores the topic in greater detail."
Alternatives: "a significantly larger piece" or "a considerably bigger project".
One of the few definite Hittite objects from the Late Bronze Age, the pendant-size figure -- representing a Hittite protective god -- stands on a deer's back and may be a miniature of a much larger work.
In a later interview with a Dutch newspaper, van de Wetering asserted that if it were, as he thought, "a fragment of a much larger work," that would diminish its importance.
The Origin was, in Darwin's words, an "abstract" of a much larger work he had initially intended to write.
Of course, the Origin was considered by Darwin to be only an "abstract" of a much larger work that he intended to complete later yet the only topic that ultimately received full treatment was domestication, in a two-volume treatise entitled The Variation of Animals and Plants Under Domestication published in 1868.
The other is a much larger work, 217 cm long.
McNicol feels that the emotional story of Chocolat lends itself well to dance; he told the BBC, "I've been wanting to do a much larger work".
This is a 445-page excerpt from a presumably much larger work, apparently consisting entirely of one-word snippets of speech borrowed from rednecks.
The much larger "Work" section includes a surfeit of detail on such matters as what the critic of the Wilmington Morning News thought of "A Dangerous Maid," but Pollack redeems himself with big, glorious chapters on masterworks like "Rhapsody in Blue" and "Porgy and Bess".
These small drawings, no bigger than a postcard, compressed all the urgent power of his much larger works.
The removal of a false ceiling in them has allowed the museum to accommodate much larger works than it could before.
Others have observed that triptychs were usually much larger works intended for public display, and they tended towards gilded and heavily inscribed frames; typically only the central panel would have been as lavishly decorated as these panels.
