Only because it’s a brave soul who could even contemplate using the phrase “average woman”.
I found this page via Twitter. It reminded me of a similar project many years ago – limited to the UK. In that version, there were male and female students used as the subjects. Each participant was “pure” English, Scottish, Welsh and Irish. “Pure” being defined as both parents and all 4 grandparents being born within the country.
By over-laying the images, similarities are reinforced, differences are blurred away. The experiment gives a somewhat blurred “average” face, but it’s distinct enough to recognise as “type”. For such a small, densely populated little group of islands, the UK’s regional genetic purity was astounding. When you think of the modern ease of movement, it’s amazing how distinct the regional variations have remained.
Here’s the more extensive, more global project.