Whistlejacket is based on possibly the most famous racehorse ever painted and currently hangs prominently in the national gallery london george stubbs painted whistlejacket three centuries ago with a simple on colour block background nick smith transforms this image using 1450 individual colour blocks each of which are named after a different race horse giving a voyeuristic view onto stubbs oil paint pallet back in 1762 this piece is signed numbered and embossed by the artist and with