For this card I have just used Walnut Stain distress ink, blending it over the edges to get a dark base card.
I then made a nice puddle of ink and water on my mat and dunked my card in to it to get a lighter, patchy background.
I then used the ink pad to ink up my stamp and stamp onto plain card. I have found if you use these inks to stamp on glossy card you can emboss them if you are quick even though they are dye inks.
I then stamped onto the background once it was dry and stuck this to the card I had edged, then added the topper I had smudged with a water brush to it with foam pads.
I hope this gives you some ideas when using just one colour.
Thanks for reading,