He left the unfinished work.
He left the work unfinished.
Other examples can be(in present participle)
He left the crying child.
He left the child crying.
What is the difference between 1 and 2 and between 3 and 4?
Participles can be both pre- modifiers and post-modifiers. But do they change the meaning when they come in different position.
What I think the difference is where the speaker want to emphasize. In the first and third sentence his emphasis is on 'Work' and 'Child' and in the second and fourth his emphasis is on 'Unfinished' and 'Crying'.