The phrase "art cleaned out" can be described as the removal of art or the process of cleaning artwork. The antonyms of this phrase would be "art-filled" or "art-stocked," which would indicate that the space is filled with various artworks. Another antonym would be "artistic clutter," which would refer to a disorganized collection of artwork. "Art preserved" would also be an antonym, indicating that the artwork has been protected and maintained rather than removed. In summary, the antonyms for "art cleaned out" would suggest a space filled with art rather than being emptied of it.