The phrase "a miniature forest" is correct and usable in written English.
You can use it to describe a small-scale representation of a forest, often in contexts related to gardening, art, or ecology.
Example: "In her backyard, she created a miniature forest with tiny trees and delicate plants that resembled a natural woodland."
Alternatives: "a small forest" or "a tiny woodland".
It looks like a miniature forest from a fairy tale.
And to offset the feeling of enclosure created by a surrounding brick wall, he filled it with a "miniature forest of flowers and trees," he said.
Here on the set of "Ultraman Ginga," the newest television variant of the half-century old hero, most workers were veterans in their 50s and 60s, who arranged tree branches on the set to look like a miniature forest, or placed firecracker-size explosives in Grand King's foam costume to explode when shot by Ultraman.
Dr. Wilson is playing guide to this micro-wilderness -- full of ants, mites, millipedes and springtails in a miniature forest of fungal threads and plant detritus in order to make a point about the value of little creatures and small spaces.
The meal is crafted with a focus on vegetation, with white asparagus and artichoke meticulously arranged to evoke a miniature forest.
Since they began in 2002, the brothers have since covered a small island with a miniature forest, cloned from branches Haixia cuts down himself.
Tucked beside a tree on a stump is Ms. Herr's miniature forest house, titled "Fairy Theater," a gourd layered with sheets of paperlike material made by wasps for their nests, topped by a pine cone and adorned with a mushroom.
And in the elegant bonsai collection, a feature of most Chinese scholar gardens, a radiant pink camellia stands amid miniature forest scenes of gnarled trees and moss.
There's a red thicket down in one, like a miniature autumn forest in a bigger landscape.
In these situations bare soil isn't bare for long; within days seedlings begin to appear and cover the ground with a miniature green forest.
At Matsushima, and in the shallow seas for several leagues around it, there are said to be more than 250 islands, isles, islets and wave-carved rocks emerging from the water, flat-topped and crowned with anything from a single gnarled gesticulating pine to a miniature pine forest.
