Suggestions?

So. My fiance and I are making our own vodka cocktail. So far we’ve used 2 parts peach vodka, 4 parts rasperry vodka, 2 parts strawberry vodka. We then added a five hour energy (blue raspberry flavour) and one bottle of blue raspberry sour candy syrup. The photos are what it currently looks like (before and after shaking), we were looking for suggestions of what sour flavoured items to add. We also wanted name suggestions for it.