Correction:: Apparently many of these works are by Dai and Jenny Vaughan done in a similar style the MacDonald Sisters. Sorry for the errors! I hope this is right but I believe these are the works by Dai and Jenny Vaughan: The MacDonald sisters Margaret MacDonald Mackintosh and Frances MacDonald MacNair along with both their husbands were known as the Glasgow School. The four were a huge influence on the Art Nouveau movement. They are credited for being influential on artist Gustav K...