In a small mixing bowl or mason jar, combine the extra virgin olive oil, apple cider vinegar, honey, Dijon mustard, sea salt, and black pepper. Whisk or shake vigorously until the dressing is fully emulsified and smooth.
Prepare the produce by peeling the navel oranges and slicing them into thin rounds or half-moons. Ensure all pomegranate arils are free from white pith.
Place the mixed spring greens in a large decorative serving bowl or spread them on a wide circular platter to create a festive 'wreath' base.
Arrange the orange slices evenly over the greens, focusing on the outer edges for visual impact.
Sprinkle the pomegranate arils over the oranges and greens to provide a bright red contrast.
Top the salad with the crumbled feta cheese, salted pistachios, and chopped walnuts for added creaminess and crunch.
Just before serving, drizzle the honey-dijon vinaigrette over the top. Serve immediately to ensure the greens remain crisp and the nuts stay crunchy.