"I would say my art is light-hearted," Cal told Bored Panda. "I play with what surrounds me. I love distracting things from their original purpose."

Naturally, in order to spot so many opportunities where others don't, one really needs to keep their eyes open. "I walk a lot, I see loads of things," Cal said. "I love observing, looking at details. I often notice that a specific stone, piece of pavement, tree, brick looks like something."

Sometimes Cal paints it straight away when they have time and the proper material, but sometimes they only make a note of it and come back after they prepare the drawings.

"I mainly play in my town, Lyon. It can be anywhere, in car parks, streets, parks, etc."

Cal loves going back to their works to see if they are still there. And it's a surprise every time! "The artworks stay up from 5 minutes to several years depending on both the techniques and the discretion of the drawing."

The artist also loves trying out something new different all the time, so they never get tired of "vandalizing" the city. "This year, I really enjoyed making fake books out of bricks, giving them titles, etc. I offered 5 of them (leaving them in the street) and put the 5 other ones in my art gallery @atelierducanal."