Cook orzo in salted water according to package directions until slightly past al dente. Drain, toss with a drizzle of olive oil, and spread on a baking sheet to cool.
Whisk together olive oil, red wine vinegar, lemon juice, oregano, and sea salt to make the dressing.
In a large bowl, combine cooled orzo, cucumbers, tomatoes, chickpeas, feta, red onion, and olives.
Pour dressing over the salad, add half the herbs, season with black pepper, and toss gently to coat.
Garnish with remaining herbs before serving.