Agree with the others saying swap the lemon and frangelico, may even kick the lemon down a smidge more next time. Sesame oil and frangelico are a match made in heaven, makes me want to add a little sesame oil to some other frangelico based drinks.
Too lazy to make a batch of honey syrup so used 10ml of sugar syrup in its place and still ended up with a fantastically well balanced and surprisingly subtle sour. Excellent.