Decided I should share some of the samples of cards we made during techniques training on Friday night - we experimented and perfected a number of colouring styles.
Watercolour pencil with Blender Pen, Aqua Painter on glossy cardstock and then on matt cardstock(unfortunately the photography gremlins interfered with my individual gloss shot):
Here is an example of Watercolour Crayons with an Aqua Painter - always stamp with permanent ink when you are colouring in as you do not want to compromise the outline of the stamped image when you come back in with a blender pen or aqua painter to merge the colour.
Pastels with Versamark really make the chalk colours pop with vibrancy. Stamp the image with Versamark then apply the chalks with a dauber, sponge or ear bud - I hope the close up shows the detail. This is a fantastic method with Two Step Stampin' (always stamp your outline last).
Finally stamps inked with Stamp 'n Write Markers direct onto the rubber die of the stamp then stamped onto your paper project. Love doing this with the Vintage Vogue set as it really lends itself to different tones of the one coloured ink.
I hope you find something of assistance in the above. Experimenting is the key and making the time to experiment is the trick!