I thnk this is  do-able with strips of plywood (probably 1/2") cut to desired width and glued and nailed to wall.  Separate strips with nail spacers.  Add simple crown and corner moldings and also high baseboards to add that vintage cottage feel.

Dress Up Bedroom Walls

Beachy blue// love the color! Also love the idea of the plank walls.maybe for the guest room.

Swedish summer cottage with painted blue pine walls and furniture. <3 the red polkadot curtains. The woven rugs on the floor tie all the colors together.

Making it country by panelling the walls and painting duck egg - also a great solution for uneven plasterwork or damaged walls.

This pantry, photographed for Cottage Living, is pretty sweet. Yes, there's a chalkboard wall, a wine fridge and ample wig storage. But there's also a super cool sliding door!

Roundup: 10 Drool-Worthy Kitchen Pantries

Sliding Barn Doors: Sliding doors work great in the kitchen as pantry doors. They're easy to slide and don't take up floor space when open.

Newel Posts add Old House Character and Charm | Beneath My Heart

Newel Posts add Old House Character and Charm

Love the wall color. Stylish stair case with painted frames on the green/ gray walls and greenery draped from the banister. I think Todd would have a fit if I tried to paint the stairs! Love this!

Here is an idea to warm up your master bedroom..  find an old fireplace mantel from a thrift store, add a little paint, install and enjoy..  Faux fireplaces can be just as lovely as the real thing

Note Details in this Simple Faux Fireplace. Faux Fireplace Design Ideas, Pictures, Remodel, and Decor - page 2

pretty green painted bed and nightstand

I love the colors and painted night stand & bed. Same wall color as my bedroom; I could do this.