End of the Midlands/beginning of the North? Watch
And would you agree that Chesterfield in northern Derbyshire is the edge of the northern Midlands and marks the beginning of northern England aka. The North?
The second two maps don't take into account that there is a Midlands area, not just a North and South.
Stratford upon Avon is not far from Bicester and Oxford, and obviously Oxford is not in the Midlands, so somewhere between Stratford and Oxford lies the border between the Midlands and the South. As Stratford is a wealthy town, it kind of makes sense to think of it as the gateway to southern England