If not stated otherwise then the amount of ingredients is for one meal, but this could still mean more than one serving of the pictured dish.
All fruits and vegetables have to be ripe. That's of the uttermost importance, only this way are they tasting yummy, are having all their essential nutrients in them and can be digested optimally by our body.
Preparation
Smoothie
Put all ingredients for the smoothie in a high speed blender, like the Blendtec
Put some softer fruits in the blender first (like bananas) so it has something to "chew" on
Cut harder and large fruits into pieces and put them into the blender with some soft fruits
Blend ingredients at high speed
Used tools
Fruits and veggies directory
Checkout the fruits and veggie directory to see how to ripen your produce or how to know when stuff is ripe.