If you don't want to be always aware of the limits of your space (especially when there are handsome planting in the yards beyond yours then consider painting the white fence a darker color. Then you can create a planting plan that includes a variety of shrubs, tall perennials and even vines to soften the edges.

If you do corner gardens it would cut down on your edging and will really bring out the corner spots and brighten them up .The land looks like it rises up towards the fence and looks similar to what we call a sway here for water to run off

It all depends on your lifestyle and how you spend your time. On HGTV.com, outdoor landscaping, you'll find a lot of information to help. In a large area like this, you may want to set up "zones" of activity. In the corner, how about a bench, table, and lots of potted plants and flowers for a reading area? Closer to the camera, how about a patio area, [depending on how much you entertain] large dining table with six chairs, pergola, again - lots of potted plants and flowers. If you like to cook and garden, develop an area for growing fruits and vegies. Please keep up updated on your progress!