That's a great blue considering the pearl in it. I'm not a huge fan of pearl colors eventhough I have every one of them in Jason's pearl color line-up. I tend to use them sparingly, such as you have done here. The lighter shades of any color along with some transparency leave a whole lot of room for color play.
I can see juicing up the blue tail color with some periwinkle, deep blue and light purple glitter, say the .015, and dosing it good with turquoise hi lites to use as a back color on the small frys. A smidge of violet hiltes instead of the turquoise and maybe some garnet glitter of the same size instead of the periwinkle.