Duncan's characteristics/presentation shown in Act 2, S3 and S4
A religious / Godly figure - his body is described as the 'Lord's anointed temple' - sacred and untouchable. and 'Murder' is described as acting 'sacreligious[ly]' in killing the king
"His silver skin laced with golden blood" - inanimate imagery of value to show how he was more than just an ordinary man
'His gashed stabs looked like a breach in nature' - simile - implies that in murdering Duncan, M has somehow murdered/disrputed Nature
Lots of metaphorical language in murder scene of Duncan - as if his murder csnnot quite be comprehended in 'straightforward' terms.
Not just a normal man being murdered
Nature disrupted by duncan's death - the night was 'unruly' with 'strange screams of death' heard. An Owl kills a Falcon - disruption of food chain - symbolising M (the 'owl') killing Duncan (the 'falcon')
Horses were 'eat[ing]' each other
Its dark during the day 'darkness does the face of earth entomb/When living light should kiss it