At this point I had grown a bit confident Standard Action thumbnail contest which started with episode 3.1. Honestly, I'm not sure if I had competition (Yea, I finished first out of one! :) ), but Rob and Joanna both seemed pleased with my work, so that was enough for me.
Each thumbnail gets used across so many platforms and ends up cropped and spliced in so many different ways, it's very difficult to compose an image that hits most of them nicely. I found it helped to keep everything near the center, in some cases platforms reduced the image to a square, so I tried (not very successfully) to keep all the relevant parts in the middle.
Here were my other entries this episode [the one with Joanna has to-date been my favorite]