Coloring Techniques?

I'm doing a freaking huge watercolor pencil coloring thing right now. I'm good with the pencils, but I'm wondering if there's anything else I could possibly use to get the colors to pop a little more.

I'm planning on using India Ink but I've never used it before so I need to experiment before I dive into this project with it.

This is my pride and joy, the best work I've ever done so any help to make it any better is greatly appreciated.

And just a little side note, my group Contests and Competitions is now open and waiting for submissions! ^^ Don't feel forced though. Thank you!!