Glad to hear you finished OK Ludwig.
For those who may be interested, in that first photo, left to right, that's Panoramix, me, Dave Lewis looking pleased as punch, Henry from Sheffield cold-shouldering Dave L, Judith Swallow, and Ron from London. miniog had already sensibly crossed the road with photographer Toby, because he had realized, too late as it happened, that where were standing prevented the rain from getting to you , but was perfect for receiving the wake from the cars driving down the river you can make out in the second photo.
That group formed pretty much at 125km and stuck together till about 400km, picking up a couple more, until miniog had the first of 3 punctures, I had one and Panoramix had one a couple of km from the end.
My test of wearing sandals worked very well, especially in the wet. The sensation of rain warmed on hot tarmac spraying over my toes was very pleasant. Looks like I'll be experiencing a be-sandalled LEL.