A Maine Summer House 

A Summer House in Little Cranberry Island, Maine, decorated by John Knott and John Fondas

Articles:
https://www.theglampad.com/2019/05/a-red-white-and-blue-summer-house-in-maine.html
https://www.housebeautiful.com/design-inspiration/house-tours/g1375/bold-pattern-decorating-ideas-0413/?slide=1