Zim and Fai's firstborn smeets, Victoria (Vika/Vik), Siegfried (Zig/Zik) and Nicolette (Nika/Nik), from left to right.
Their parents have decided to give them Earth names. All of them are related to the word "victory" in one way or another.
Even though, they are supposed to be considered as vigoriens by their mother, technically they are virkens (irken + vigorien interracial hybrids).
These smeets can also be seen on this pic:
https://www.weasyl.com/~fireyflamy/submissions/1626244/zim-and-his-smeets
Irkens © Jhonen Vasquez, Nickelodeon
Artwork, Victoria, Siegfried, Nicolette, vigoriens, and virkens by Firey-Flamy