With static graphic I mean, as you'd suspect, 'not moving images'. I've tried to make a division between several types of images, but it is not always very clear which image would fit in which category. Storyboard images are drawings, but they are also made digitally, with a drawing tablet, straight into Gimp (the software I use to draw and manipulate images).
I've chosen for a seperate category 'storyboard' because there are just too many of them to add in the section 'digital'. They are displayed differently too, because it would be easier to browse through them.