Based on the information given, the improvement will be the addition of a sweet that has a red color.
It should be noted that color is important in art as it's used for the creation of flare and the enhancement of a particular product.
In this case, it should be noted that every brand is usually associated with a particular color that makes it stand out. Therefore, the addition of a sweet that has a red color will make the brand unique since red is typically associated with Skittles.
first of all those look truly epic lovin em but i think you could improve the skittles one by adding a red or 2 because red is the most common liked frlavor of skittles