It was colourising the photo of Czeslawa Kwoka in 2016 that had the biggest impact (Picture: Faces of Auschwitz/Marina Amaral)I’ve been colourising photos professionally since 2015.From Lenin to Winston Churchill; from the Titanic leaving port in 1912 to the Battle of Verdun. I have covered hundreds of years and added colour to iconic photos and to those in which the subjects will forever remain anonymous.But it was colourising the photo of Czeslawa Kwoka in 2016 that had the biggest impa