To segment the oranges (see notes), slice the top & bottom off one orange and stand it on your work surface on one of the cut ends - it doesn't matter which
Take a sharp knife, and starting at the top & using a downward stroke, slice down the side of the orange to remove a strip of rind about 2 cm / ¾" wide - following the contour of the orange as best you can, then continue around the orange. Then turn the orange over and trim any remaining rind from the other end as well. We are aiming to remove all of the white "pith" but leave as much of the orange flesh as you can
You should now have a pretty naked orange, but you will see each of the segments is divided by a membrane. It should look a bit like a beach ball or a basketball
Taking the same sharp knife you now want to cut between the membranes towards the centre of the orange, and pop out your segment & remove any seeds
To make the dressing, take the left over orange membrane & with your hand squeeze out the remaining juice into a small bowl. Add the lemon juice & olive oil to the bowl as well & mix lightly then set aside
To build the salad, scatter ¼ of both coriander/cilantro & mint leaves on to your serving plate/dish
Top herbs randomly with 5-6 slices of both avocado and orange, then scatter over ¼ of herbs again, along with ⅓ of spring onions, pomegranate seeds & feta each & repeat until all used
Drizzle over dressing & serve