Love that color paint for the brick. Would also be nice to paint the exterior a different color in an attached patio area (Woodcliff Lake by Benjamin Moore and that yellow door!) Yellow door with gray main color
Awesome Loft Beds--Since you won't have a window on the one end of your upstairs, this could be a fun idea for the kids area. Not necessarily a bed, but a 'loft' on top of a 'hide-out' area---or something. The bookshelf stairs are a neat idea too.
Bunkhouse idea/look - A red-white-and-blue theme is perfect for a summer home's bunkroom. With just patriotic bed linens and small area rug, this kids room is playful and filled with color. I LOVE the bunk bed ideas!
67 Elegant Bedroom Design and Decor Ideas
Gorgeous 67 Elegant Bedroom Design and Decor Ideas https://buildecor.co/03/67-elegant-bedroom-design-and-decor-ideas/
Shared boys' room features white built-in bunk beds dressed in blue quilts accented with shelving situated under playroom loft as well as white and aqua bean bag atop white and blue herringbone rug, Serena & Lilly Charing Cross Rug.