Cucumber-forward while the mint gets lost a bit. I used small leaves so potentially needed to add more (although I used 10). It came out a bit too sweet, so I'd maybe start with 1/4 oz simple syrup (or agave), taste, and go from there. In the Death & Co book Phil Ward mentions they make a spicy version of this cocktail using their jalapeño-infused tequila -- I think that'd be much better. The Yellow Chartreuse gets a bit lost even though there's a good amount in here. I might use only one cucumber wheel next time to let the other flavors come through a bit more. It also doesn't call for a garnish, but a mint leaf (or cucumber, or lime) might work well.