smoothie recipes are like a never ending story. The subtle and not so subtle changes day by day make it interesting.
I like to freeze the fruit that I add to any smoothie. That way I do not add any ice, but it's thick like a milkshake.
Do you want it to taste more like a milkshake - start with milk (regular, soy or almond doesn't matter). I prefer the unsweetened variety. We usually make a smoothie for 2 or 3 , so 1 - 1 1/2 cups for starters
Peel and toss in a whole orange, a cored apple, fresh pineapple slice, handful of baby carrots.
Mix it with a 1/2 cup to a cup of juice of your liking - mango, tropical mix - whatever (unsweetened with pulp is my choice)
Want a mid day treat? add 1/2 cup of vanilla ice cream or frozen yogurt (makes the smoothie taste like a creamsicle)
Finally toss in the frozen fruit. Strawberries, blueberries are our staple fruits. Or try frozen blackberries, cherries, raspberries, . . you get the idea. (We purchase fruit in season or pick it wild and freeze them for all year smoothies). About 1-2 cups of frozen fruit make it into a slurpee / milkshake consistency. Real thick.
Want it more healthy. Add a handful of baby spinach. It looks ugly, but you really don't taste it . . . and it's healthy. Add a tablespoons of ground up flax seed and or chia seed for fibre.
Experiment and don't stick with a recipe. Be a mad scientist and whip up something new each day.