Today I discovered that working with Tombow watercolor markers and colored pencils, Faber-Castell Poychromos pencils to be specific, is a match made in heaven.
If you put down a layer of color with the Tombow pens and wait about a minute for it to dry, you can color over the top with colored pencils. This allows for subtle shading and detailing which can be a problem when using markers alone.
I also went over the top of the whole thing with a Uni-ball Signo white pen. This also worked well.
Here is a quick video with a demo. Stay tuned--I'll be doing a whole picture soon.
Have a great weekend!