There are many ways to elevate the different spaces in our homes. Another simple method is changing the lighting fixtures. Something as minor as changing the warmth of the lighting can significantly alter the ambiance and mood. Also, the good thing about lights is that it's easily replaceable.
Another idea could be to theme certain spaces. Beach-themed or industrial-themed concepts have been quite popular, giving an instant unification of decor elements without much effort. theming doesn't have to mean going overboard with decorations. Simple and subtle touches like a shell-studded frame or industrial lighting can pull the look together.