Still Life drawing using a grid, and then a concertina book!

Using a 'Durer' grid I drew a still life arrangement of plants, a jug and rope. I made an initial line drawing onto a measured grid of a ratio 5 x 7 . I then added tonal values to the picture. Using the durer grid is beneficial as it provides a managable guide to proportions and foreshortening, and there's potential to easily transform scale,  perspective or proportions by altering it's dimensions.

 The drawing was then photocopied and reversed negative/positive to create a black and white printed image of the picture. This was then cut and folded to create a concertina book , which I then arranged on the surface of the table to create a new still life object .

From this new  still life object I made a line drawing with pencil and light shding before then filling in the marks made in the photocopied mage of my original drawing with black watercolour, charcoal and pencil.