Even though Godzilla vs. Kong is a movie where no one cares about its human characters, Kong’s special connection with Jia, played by Kaylee Hottle, is definitely visible through the eyes of the giant ape. The VFX team took special care to make sure Kong’s eyes had some depth and conveyed everything he was going through while communicating with Jia. Like any great performer, Kong had to be able to use his gaze effectively.
Article source: https://www.cinemablend.com/news/2566033/one-detail-about-king-kong-changed-so-much-for-godzilla-vs-kong-monsterverse