Marker Sketches

I did this sketches some time ago, the interesting with those is I used 0.5 mm permanent marker (for marking CD-s ) and directly sketched them down from magazine photos without using pencil to construct them prior inking.
I warmed up to get use to the marker first, and did some initial sketches. I found it is a good exercise to get rid of fear that once you have laid the lines you can't erase them, and that is why is a very useful tool for becoming more spontaneous when drawing(which I need desperately:))).
The hardest part, for me was to get proportions right....I think I'm going to do more of these in future...