 In 1911 , Raphael Tuck & Sons bought four of Barker 's " little drawings " for half a sovereign , and published them as postcards . In October 1911 , she won second prize in the Croydon Art Society 's poster competition , and shortly afterward was elected the youngest member of the Society . The art critic for the Croydon Advertiser remarked , " Her drawings show a remarkable freedom of spirit . She has distinct promise . " 
