Amsterdam not London
 

Just being accurate, this is Amsterdam.

NO no this was Amsterdam WNBR
 

Yep, this was Amsterdam. We where there also.

3 From Brighton and 1 From Bristol WNBR

The Silver Lady rode in London 2009. The Brunette in Montreal 2011. The Blonde in Brighton 2014 and the Redhead rode in Cambridge 2016.

Milf in blue
 

Anyone with any information on this milf in blue? What ride or anything? I've never seen her.

Try reading the text you quoted.

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Milf? Sure, the hippie look makes a young woman seem older, but... No way she was past her mid-20s at the time.

As Laylak pointed out, your quoted text says, Montreal 2011. Check out the posts before and after my post that had a shot of her. And then go download LapriZ's whole Montreal 2011 Flickr set. It's still one of the all-time great WNBR sets, especially if you like artistic/alternative college women. If you're looking for actual milfs, though, I can't help you. :D
flickr.com/photos/lapriz/sets/72157626964623606

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Last one for Montreal 2011 Lady with Floppy Hat and Zita Lotus Strip at WNBR London.