UrsusArctos: Bloodsoaked imitations of birth don't get more violent or gory than this, with the possible exception of Chestbursters from the Alien franchise.
Mbryo: An interesting note is that Leliel's namesake, the angel "Lailah(לַיְלָה)" in Jewish mythology, is the angel of conception who watches over unborn babies until their birth. Hence the violent 'birth' analogy in this scene. Another side note is that Lailah shares the roots of her name with Lilith, both stemming from the Hebrew word for "night", possibly referencing the fact that Unit 01 is a being 'born' from Lilith.