100% skill.
There are of course luck factors in single hands or on some small samples, but come on. If you are a competent player, you understand variance, you improve your game day by day then "luck" factor doesn't matter.
For me "luck" factor doesn't even exist. What does it mean for you? losing aces few times a row? being eliminated on bubble in important tournament?
just make a volume, try to make most +ev decision as you can, work on your mindset and believe me that you will forget about something like "luck". But most of people prefer to complain about how unlucky they are but they never ask yourself: how much they study, how big volume they make, what they can improv, was it bad luck or maybe my bad play? there are many questions which people avoid.