Hi Nathalie. I've just revisited the above and moved from being equal parts. Hopefully, now better? And a lemon zest looks better due to the contrast in colour to the cocktail. Perhaps express orange zest and discard, then garnish with lemon.
Definitely a different taste, I think it's the triple sec that is the savior of this drink. Make sure you squeeze your orange zest over the drink, the oils help with the flavor immensely.