I flip flopped a lot between blue and yellow colour palettes for Dollie.

I was put off the blue palette because I really didn't want her to look like a Mega Man imitation, but the yellow palette also had problems clashing with other character designs/colour palettes.

Dollie is ™ and © David Nathan Dawkins.
Character Concept and Design ™ and © David Nathan Dawkins.
Artwork © David Nathan Dawkins.