I think the character looks good, but this has 27 colors and I think you could easily make it with about half that many. The white background doesn't seem to have any purpose, and I think it's best to have a transparent background than a white one.

yo elegiria otra paleta.

que del amarillo se degrade al marron no al verde.

que el rojo se aclare al naranja no al rosa.

ya lo vas a entender obserbando otras paletas