Here are three ATC's I have made for a monthly swap over on UK Stampers Forum. This months them is 'Bicycle Race'.
I have used chipboard as the base for these 2.5 x 3.5 inch cards which I first covered with printed papers to make the base.
I have used a number of stamps, (tree, bicycle, first class, enjoy the journey, corner & garland) with Memento inks and collaged items to form the design. The bike was grounded by drawing a black line with a 0.2 black Micron pen. I then added a green faux gem in the trimmed paper circle and Posca pen in white and gold.
Final touch was to edge with barn door Distress ink applied on cut'n'dry foam.