Personally, I think ballet is the most prominent dance form in Haechan's dance style. It's evident in his fluid and graceful movements, his extensions, his form and technique, as well as his awareness of shapes and imageries.
"Ballet Dancer Analyzes: NCT HAECHAN - Why Efficiency is Elegant"
This is Episode 1 of @shakyraindrop's series on "Anatomy of a Dancer" where they analyzed Haechan's dancing. They're a professional ballet dancer, so their analysis is very detailed and informative. It's one of my favorite videos made about Haechan, and I urge you to watch it, too!
🪴 Elements of Ballet
🌿 Five positions: the basic positions of the feet and arms through which most ballet skills move through
The cutest thing about Ballerino Haechan is how his feet are always in a basic ballet position at the most random times. He can be standing idly in their Youtube content or spontaneously posing for photos but bet he will stand like he's just waiting for the music to play.
🪶 Haechan being a ballet dancer by lhcsunace
It's no surprise that he carries this in his dancing, as well.
It gets even more evident next to others.
🌿 Well-maintained posture, extension, and precision
The easiest way to explain Haechan's posture, extension, and precision is using this specific "Superhuman" fancam. Not only is he alone in the video, but he's also wearing black and well-fitting clothes that highlights the shapes he creates with his body.
Observe how tall and long he looks. This is possible because of the extended movements of his limbs, and the way the moves follow through until his fingertips.
He leans backward at 2:20 to extend his body. His awareness of shapes enables him to add an illusion of more length to his neck, arms, and legs.
🌿 Body alignment: the rotation of the legs from the hip so that the feet are facing outward (known as "turnout"), correctly placed arms, and centered upper-body
The 'Sticker' dance practice video shows Haechan's application of techniques in ballet such as préparationis and spotting, correct arm and foot placements, and having a centered axis when doing pirouettes, among others.
🪶 Haechan being compared to ballerinas by xu9yu
🪶 Haechna doing ballet in the Sticker dance practice by sugar2runes
🌿 Complicated patterns of dance moves, challenging steps such as leaps and turns
There are a lot of Haechan spins, leaps, twirls, and turns seen in their choreographies. There is a Twitter thread featuring these linked below:
🪶 Haechan being the "Spin King" by sfwithfs
Haechan incorporates the techniques mentioned above like spotting and having a centered upper body whenever he does his spins, and it's so satisfying to watch.
Here's a Haechan spin moment that is my personal favorite:
🪶 A ballet dancer's analysis on 'Love Sign' by haechu
To end this long ramble on Haechan and his ballerino tendencies in dancing, here's 'Love Sign' and its dance break that he choreographed himself.
It's filled with various elements of ballet (as well as other dance forms he learned), and it's a very accurate culmination of all the aforementioned observations.