This is similar in profile to my CucuDew recipe and I'm getting a similar results. That Cucumber, Melon, Mint combo really works well using Watermelon also.
I did add a twist to this one by using the above combo in a creamy smoothie base. As for the this smoothie base, it turned out to be very soft, smooth and creamy with a slight sour/tart note. It's not weird or overbearing nor does it adds any offensive notes to this mix.
I added a bit of Pyure (New Formula) to sweeten this mix up a bit and help keep the tart/sour note in check.
I'm very happy with the flavor balance and the parings. It's a bit different from some of my mixes, but is sooo tasty.