When I first saw these images I assumed they were photographs taken with a blue filter. Even after a closer look I still did not believe they were hand drawn with a biro. Yes a BIRO! Its unbelievable, they look so realistic! Juan Francisco Casas is a spanish artist and his breathtaking pieces of work have been exhibited all over the world. Each image is around 10ft high and can take up to four ball point biro pens to draw! His inspiration comes from his own photographs of nights out with his firends.
You can see his website here http://www.juanfranciscocasas.com/
Also check out my friend Bex Harmen, she is also a very talented artist drawing with biros. I wish I could draw!