Something different again - this was a uni painting assignment, where we had to dissect a painting by a well-known artist, and reproduce it using impasto methods (i.e. paint thickened using various additives). For these paintings (on four A4-sized canvases), I've added rice flour, salt, polyfilla and texture paste.
Here is the original image, by John Wolseley, Tracing the Wallace Line; wing leaf and land, 1999. watercolour on paper. 136 × 205cm.