Two sets of Round Robin cards today, where I was the first player (i.e. I started the card). These were similar starters - I used a paint chip on half of each of these cards, with the security liner from inside an envelope on the other half - I really like the way the next person has turned it sideways to make a sea scene.
With this set, I used the other half of the paint chips, but a bookpage for the other side of the card. Again, it evoked a sea scene, but in a very different way.