If coastal is your style, you might collect and decorate with driftwood, shells, oars, starfish and paint your walls blue. However, if you want to bring a level of sophistication to your style, then you can start to develop your materials and colours. If you like shells, then you can layer in creamy woven textiles who's pattern mimics the pattern of shells. Driftwood could translate as timber; which you could bring in through the rough timber of a coffee or console table. Look to sailboats for inspiration; pick apart all its pieces. A round porthole could translate as a round mirror or round side table; or both. Repetition in design makes the space feel considered and cohesive. Look beyond basic blue, and pick out the blues from the ocean: a soft blue of water at the shoreline, the aqua blue of tropical waters, or the indigo blue of the deep ocean. Pair them with crisp whites of sea foam, or moody grey skies or the inky blackness of an angry sea.