From the trivia page on IMDB:
"
(at around 11 mins) When the team first enters the cave to look at the ship, there is a snow / ice formation which looks remarkably like the head of the xenomorph from the alien series. Whether it is on purpose or a happy accident is unknown, however coincidentally the effects team on this film, Alec Gillis and Tom Woodruff Jr. had been working on the Alien franchise since 'Alien 3' (1992) until 'Aliens vs. Predator 2: Requiem' (2007)"