Amazingly realistic drawings with a BIC pen

When I am travelling I like to spend my time reading, looking outside, listening to music or drawing, especially while flying.
Usually then I draw with a BIC pen, because I do not take my entire arsenal of art supplies with me on the plane.

Just a while ago I bumped into this Spanish artist and the stunned me with his skills. I love to draw but this guy is a phenomenon if you ask me!

Inspired by nights out with friends, Spanish artist Juan Francisco Casas has created these incredible photorealistic drawings using nothing but a BIC ballpoint pen.