For the hummus, blend chickpeas, tahini, olive oil, lemon juice, garlic and sea salt in a blender until smooth. Add water as needed to achieve a creamy consistency.
For the topping, in a separate bowl, mix tomatoes, cucumbers, onion, olives with oregano, salt and pepper. Stir in the fresh herbs.
Spread the hummus on a serving platter and top with the vegetable mixture. Drizzle with the extra olive oil.
Garnish with additional herbs, a sprinkle of paprika, and pine nuts if desired.
Serve with warmed pita bread cut into pieces suitable for dipping.