[FlowtographyBerlin]

Great first post here at PZ.  But you've set the bar high for yourself for future posts!

 

Good to learn about your not-a-blog, I'll keep checking it out.

 

Thanks for noticing that detail, Dave :-)

 

Could I please ask how/what you use (the program/plugin) to make the comparisons with this sliding of the arrows effect. I have a Wordpress blog and this interaction type of yours would be quite fun to do.

 

Sure, it's a plugin called Before-After-Viewer. There are many of those available on the net (the good ones are not for free, but they're worth the small amount you pay).