I like it the way it is, but I also like all black ink anymore. Think long and hard, I'm sure it will turn out nice. I think the coloring between the lines is a nice idea though. Different colors in eachone?
My tattoo artist was talking about doing swirls with negative stars...but I'm not sure I can handle that much work. Plus, I like clean, simple lines...so I think I might color inbetween the lines, and maybe make the black outline thicker...IDK...