Leaf Art

Have you ever heard about "leaf carving"?

I hadn't until I came across some amazing photos showing it...

source 

The talented artist who knows how to do it is called 

Lorenzo Duran and is from Spain. 

He even participated in an international advertising campaign that encourages people to plant trees. Here is some of his leaf art:

source

So... what do you think? Isn't it just amazing? 

I would love to know how to do something as creative as this... 

Maybe I just have to start learning :)