Preheat the oven to 400°F (205°C).
Prepare the citrus marinade by mixing olive oil, lemon juice, orange juice, zest from both fruits, salt, and pepper in a bowl.
Place the salmon fillets in a baking dish and pour the marinade over them, ensuring they are well-coated.
Bake the salmon in the preheated oven for 12-15 minutes, or until it flakes easily with a fork.
Meanwhile, prepare the arugula cucumber salad by combining arugula, sliced cucumber, honey, and a touch of lemon juice in a bowl.
Once the salmon is cooked, serve it over the arugula cucumber salad, garnished with fresh herbs.