Hey I found the poem, I like it.
It is interesting how Warsaw is personified in the poem. In your speech you could talk to warsaw making comparisions between the physical journey of it being bombed and broken and being re-built to his parents lives being negatively affected by war and re-building their lives in Australia. Further much like Warsaw being new (highrise flats and concrete pylons) all of the old buildings were blown up, Peter represents the new Warsaw as he is the new generation.......
Also think like a child of an immigrant if you are then this will help. My parents are from Ireland, I have been their briefly and consider myself Irish / Australian. How does the physical journey of an immigrant kid vary to the journey through life as a non-immigrant kid? You are the first of your family to be Australian I am Australian but I have a funny Irish name and a liking for guinness and other things uniquely Irish. As a kid Peter might have been ridiculed for his last name and his parents accent and poor English skills. He is clearly proud and inquisitive about his cultural background. No doubt he wonders how his life might have been if he wasn't an immigrant hence the title "immigrant chronicle" Consider this a chronicle is like a diary. Your presentation might see you reading entries from his diary that he has kept his whole life?
There is no need to refer to specific techniques like the symbolism of high rise flats and "the sky's brightest shade" but you will do well if you allude to them. For example - Warsaw, you are not the city my parents know, their warsaw was a city of rubble and skys grey with smoke from burnt out buildings. So here I have used personification and demonstrated an understanding of the symbolism of the sky and high rise without saying the poem has symbolism and personification as techniques.
A postcard is a perculiar thing. it is a static image, almost the opposite of a journey it is a moment of time caught and unchanging. look this is just an idea worth putting thought to.
Presentation wise, i'd have a postcard as a prop to talk to. I know you will be using palm cards but using pauses to look and ponder the post card might be effective, is he contemplating tearing it up or giving it to his parents and why? this could cause your monologue to have suspense running through it. One last thing what is written on the post card by either Peter's friend or by the publisher you can make this up to suit yourself.
I've noticed there are other threads on this site about skrzynecki's poetry and speeches. Sadly, no help to you because of the style of the speech. your teachers have been very creative to ensure plagerism is almost imposible. so start writing, expect to be hitting the delete button more than any other that is the process of creative writing. I am an amateur playright. Sometimes I re-write a short passage 10-15 times, but only on a good day, more often i have to edit a passage 20 or 30 times before I'm happy with it.
I'll check in again and see if you have anything written, sadly if you were hoping of someone to write it for you that would be cheating and you will feel the despair Skrznecki refers to in the poem
good luck and get creative
cheers
emca