The Brothers Flub

Valerina is the character from the long lost Nickelodeon show, The Brothers Flub.

She's a female alien has lavender skin with magenta hair and has a ponytail. She wears an orange cap, a dress, and shoes.

Fitness Freaks (Season 1, Episode 5)
In the ending of the episode, Valerina made herself have bigger muscles than they were, however she was so big she couldn't fit through her spaceships door, much to her frustration.