Exact likenesses can be described using a variety of synonyms to provide more descriptive language. Some alternative phrases for exact likenesses are "identical duplicates," which signify an exact copy or replication of an object, person, or organism. Another possible synonym could be "mirror image," which conveys the idea of a reflection or an exact duplicate, albeit in reverse. Another option could be "carbon copy," which is often used to describe a replication of an original document or work. Overall, there are many possible synonyms for the phrase "exact likenesses," each with its own unique connotations and nuances.