Looking on Youtube for mounting hints I got a lot of "Jeez these are hard to mount" videos. I don't know why. Mine went on very easily. I should bend the metal wires on the back fender to bring the fender closer to the rear tire. I tried, and was impressed how hard it was to bend them, I'll try later with more serious tools.
Just in case you're wondering, those small white stickers are "I Voted" and "Ya Voté" stickers from our local polling place. Tricia and I usually ride to vote and put the stickers on our bikes and helmets.