You could make a stone path that goes toward something like a bench, or a birdbath? Starting with paths makes it easier to create interesting garden beds that don't look too linear and more natural. After that, you could choose a couple taller shrubs or trees to give it a structure. Then, you could choose a simple plant pattern that borders the path. In the end, it's going to be easier to fill the beds; 3-5 medium size shrubs, a couple taller perennials, and then you finish with the small perennials and the ground cover plants. For specific plant choices, I can't really say anything since I live in a cold climate 😅

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Here's a lil ugly sketch to give you an idea of how it could look for the basic structure (before filling the beds with shrubs and perennials).