Karlen started her art career over a decade ago selling prints of her artwork at local conventions. She went on to do illustrations for private commissions, book covers, Kickstarter anthology projects "Encounters with the Imaginary" Vol.1 & 2, and non-profit Pokémon zines.
Besides traditional illustration, Karlen has bounced around a few studios as a freelance game artist doing 2D and 3D animation, as well as concept art.
She has worked on a spinoff project with Sony Pictures for the movie Bullet Train.
Most notably, she has created designs and artwork for the videogame 33 Immortals coming out later this year.
Karlen is currently a background designer at Titmouse animation studio.