I kept salad interesting by separating orange into sections and adding one whole orange in the salad, then I sliced the other very thinly, peeled a few slices and added as a different pattern and added unpeeled on the side. It just looks very pretty in my opinion. If you don't have sumac or Za'atar, do not panic... It is alright! It adds a nice flavor and aroma, but if you don't have it tastes delicious even without it.