My coloured pieces below were based on Kathy's inspiration video on day 2. The first picture shows the colours a little better than the second picture, yet the second picture shows all the supplies I used.
For the bottom card I started by drawing circles using the inside of a roll of painter's tape, shifting the roll sideways to draw overlapping circles. I then coloured in the different areas using Flexmarkers and decided to colour the remaining white areas using a permanent black marker I had on hand. Lastly, I added the leaflike veins and a few more lines using a thin black Letraset marker (0.3 mm).
For my second card (top left) I used the small label die from the set of CutUps from The Cat's Pajamas. I didn't like the big areas I got at first, so I did some more overlapping and ended up with those oval shapes. Beforehand I had no idea that the basic shape would be a perfect base for 3 of these ovals, but it turned out great. After colouring I tried adding some white dots using a white gel pen and then added a few black lines as well. My white dots did not turn out the way I would have liked, but hey, I didn't get a chance to practise as much as Kathy did LOL.
I do have a few ideas on how to turn these pieces into cards, but since the challenge is all about the colouring and not so much about creating cards, I thought I would post my pieces separately.