Look at beautiful branch patterns, plants that have interesting bark, or plants that have colorful berries through the winter. Most gardens don't have perfect soil and need amendments. Amend the soil at least somewhat before you begin extensive planting. Usually this means adding lots of organic matter. Make your own compost or spread autumn leaves on the garden to decompose over the winter.
Gardens are more than just plants.
You also need some structure . It can also mean the addition of things other than plants such as a meandering gravel path that leads to a sturdy wooden bench, a rock wall to terrace a sloping garden, or a pool of water to reflect your plantings. Working through the 4 steps above will have you well on your way to a garden full of healthy plants that is a pleasure for you and for others. I'm new at this email stuff. I am fortunate enough to have email at work.