A flag design for the Anglosphere: the nations in the world whose chief language is English and share common cultural and historical ties to the United Kingdom, and which today maintain close political, diplomatic and military cooperation. The definition is fairly hotly debated and fluid in terms of which countries 'count' in this list, so I've taken the liberty to produce a flag that mainly represents then ten nations I think most closely meet the criteria:
England, Wales, Scotland, Republic of Ireland, Northern Ireland, United States of America, Canada, Australia, New Zealand, South Africa.
Notable graphical references to these nations:
Overall design modelled on the Canadian flag's red field and a white central square, overlaid with a central blue banner with a white eagle (in the style of the US presidential seal), symbolizing the most populous and influential English speaking nation: the USA. The eagle's talons grasp the national flowers of the constituent nations of the United Kingdom, and Ireland: the English rose, the Scottish thistle, the Welsh leek and the Irish shamrock - a reference to the cultural and linguistic roots of the Anglosphere. The crowning star above the Eagle is in the style of the crown above the secretary bird as depicted in the South African Coat of Arms - but in this flag its seven points are also a reference to the Australian Commonwealth Star. The crown represents the Southern Hemisphere nations of the Anglosphere (sorry NZ, you don't get a specific unique reference but you're included in this too). Finally, the eagle's shield holds ten stars symbolizing each of the ten nations.