1. Mix orange juice and 1/2 cup lemon juice in a tall pitcher. Add half of mint and bruise with the back of a spoon against side of the pitcher.
2. Taste, adding more lemon juice, if desired. Mix in lemon, lime and orange slices.(can be prepared 4 hours ahead at this point and refrigerate).
3. Add ice to the pitcher and mix. Pour into glasses. Garanish with remaining fruit.