Girly Kaoru Is Still Kaoru

yea. i couldn't think of a good title and i hate using boring ones

so while coloring this i needed a gray colored pencil to go over the blue to get her hair color. i couldn't find my colored pencil so i just used a gray crayon. when i put it over the blue it turned green.... i was like so i had to keep going over it with the blue until i got this color.