To my untrained American ear, your speech is "some kind of [strange] Australian / English hybrid," except I don't hear anything strange about it. The words that stood out for me as 'Australian' were 'blue cheese' and 'three'. The words in isolation sounded 'English' to me, so there is probably something about your cadence that sounded 'Australian'. The pronunciation of 'blue' was the most noticeably different to me.
I look forward to hearing from some British English speakers. their opinions will be more useful and their specific comments will be more precise.