Sketching or location drawing whatever people call it, it's one of my favorite things to do. Especially when I go out with my family, I can't expect them to wait for me to draw forever. So I have to make it quickly as I can, and that is a good training for me. This MLKing day I went to the Point Bonita in Sausalito, and it was muy bonita just like the name. The sketch was done with ball point pen, which was only material I had that time, and colored later by marker and photoshop.