My good friend Christine has been making smoothies ever since we were at UT Austin, and I gotta tell ya, it's still the best smoothie I've ever had. She makes them thick, and there is no need to add yogurt or ice. I don't have a photo but it looks just like the smoothie images you see in Google.
organic fruit smoothie: 16 ounces of organic orange juice (i use the organic valley brand sold on freshdirect) 16 ounces of organic frozen fruit (whole foods and freshdirect sell packages of ready-to-use frozen fruit...strawberries, peaches, blackberries, mangoes, pineapples, bananas, blueberries, etc.) pour orange juice and frozen fruit into blender and blend until smooth. add more fruit for a thicker smoothie, less fruit for a more liquid one. makes two 16-ounce servings.