Place kale, blueberries, orange slices, avocado, almonds, goat cheese, fennel slivers, sunflower seeds and mint leaves in a large salad bowl.
Whisk all dressing ingredients. Dip a kale leaf into the dressing to taste for seasoning. Add a little more lemon juice, salt, and pepper to taste.
Drizzle a few tablespoons of dressing over the salad. Toss to coat and add more dressing to your liking.