Hey a question for me! Woot!
Full disclosure, my wife and I (53m) are amateur gardeners. We have a nice English style garden on our tiny postage stamp of property.
First some questions for you.
What are you going for? Flowers, bushes, trees in that area? What is there now? Hard for me to really tell from that photo.
Where are you located? More specifically what is your area's USDA zone? As an example, I am in south central Wisconsin and we are zones 4/5.
How much sun does that area get? Are there trees nearby that might block morning, or afternoon sun? That photo shows full sun when it was taken.
Based on your answers above, I might have more questions. Just an FYI.
Something you can do is take that photo to a local gardening center and show them that photo. A good garden center will always have an old pro that gives great advice. Just avoid going to the big box stores, unless you know exactly what you are looking for and are bargain hunting.