Rare chance to sketch someone eyes alert on a train journey across London, North to South. #pilot pen #pilot pen sketch #pilotpendrawing #portraitdrawing #pencildrawing #pencilsketch #portraitpainting #colourpencil #colourpencilart #colourpencildrawing #colourpencilsketch #colourpencilshading #colourpencilartists #artistsoninstagram #artist #artistsofinstagram