QR Medical
Reference the QR medical - remember that it is an initial issue medical.
An initial issue medical is a bit more demanding than a recurrent medical.
Bear this in mind if you have any medical 'issues' that you are worried about (or you are an older candidate) as this 'may' cause you issues on arrival.
Needless to say, although you may hold a valid Class 1 in your home country, it doesn't guarantee you an Initial Class 1 in QR.
First flight available taking you home if they are not happy with something.