Dear Client,
The basic concept of this design is to combine two garden areas with different concepts into a unified garden. This involves adding a touch of hardscape in the form of decomposed granite as a border to the green garden (the garden on the left).
The patio and fountain are placed in a relatively flat area. This required some engineering to level the ground. A dry creek bed flowing through the garden will be an attractive feature in your front yard.
The softscape uses plants that are easy to care for, require minimal water, are safe for children and dogs (thornless and non-toxic), and are native to California.
I have combined your ideas and descriptions and implemented them into a design. I hope you are satisfied with the design.
Regards,
Ilhamsyah.