Why not use water and brushes to blend the colors so the drawing looks more dynamic.
I didn't use watercolor paper so if I were to add water the paper would pucker and ruin it. Plus, I shadowed using pencil so the colors would be dull if I were to watercolor over it. Normally when I draw for the purpose of watercoloring, I don't shade with the pencil and I don't draw that dark...more likely, I'd gently sketch the outline unless I'm using Micron or Steadtler ink pens which when dry won't dull.