My longest drawing : almost 5 hours (in three sessions) seated in the square and drawing this church!! In order to try another kind of drawings, I´m trying to make it slower. So I´ve been sketching with a friend that uses to make some fantastic, though prolonged drawings: no matter how slow I am, he will always be slower than me! So, at the same time I´m trying to spend more time with my drawings, he is hoping to get faster…
I must admit that after scanning it, I found some perspective mistakes! That is what I get for drawing all this complex geometry directly with a pen!
The church, designed by Padre Tosca, with clear influence of Vignola, is located at Plaza de San Vicente Ferrer, usually known as “Plaza de los Patos”.
a fresh drawing everyday 
Very nice work on this piece!
Thanks Jason!
Looks like five hours well spent! I’m looking forward to be doing the same thing..
Thank you! Good luck! If I can help you, just let me know.