The first stage of rendering storyboards

Here is a storyboard assignment that was killed after I did my final drawings before rendering the frames in color. I traced my sketches onto a high quality layout paper using a gray marker pen that had a brush point. I don't recall the product name for the marker, it was a new tool that I was trying.
















You can see that these drawings are quite accurate and detailed. Usually I would draw these with a black Pilot Razor Point pen.