Using a telephoto lens to compress the shapes of distant hills into “waves” is a time-tested technique that can produce great aesthetics. For this photo (taken yesterday), I aligned some small trees for a foreground element to present the distant hills. The key to getting the foreground just right was to not overpower the scene, but also to take up a bit of the negative space.
Above photo taken with the Tamron 16-300mm VC All-In-One lens and the tripod-mounted Canon EOS M mirrorless camera. Exposure settings: 1/125 F/11 ISO 100, 251mm