Make the dressing. In a small saucepan over medium heat, stir together the lime juice and honey. Stir just until the honey is incorporated and the mixture is warm, about 2 minutes. Remove from the heat and stir in the rosewater, if using. Set aside to cool.
Mix the salad. In a large bowl, combine the strawberries, cherries, blackberries, raspberries, and pomegranate seeds (if using). Add the dressing and give the fruit a gentle toss to combine.
Finish and serve. Add the walnuts and mint and gently toss. Transfer the salad to a platter or individual bowls and serve.
