Hi. No, sorry, but those two positions are separate. Leader Of Her Majesty's Loyal Opposition is a constitutional position that carries with it certain privileges and duties (the right to appoint peers, for example). The Leader of the Labour Party is a separate role that has nothing to do with being leader of the Opposition - Mr Miliband is the latter because Labour are the second largest party in the House. The Queen and Prime Minister are mentioned in those boxes because that's how Wikipedia works - it should be a matter of record under which Monarch and opposite which Prime Minister he was Leader Of The Opposition.