Having been to Aus I know a bit about Aboriginal culture so I understand what you're getting at here. This is a really beautifully written, insightful poem about what it's like for someone of Aboriginal background to be in the Westernised culture of Australia. At least that was my interpretation.
The ending is just perfect in my opinion. This is one of the most interesting, original and cliché-free poems in the contest, I'm voting this as 'Excellent' and wish you the best of luck in the competition.