There seems to be a glitch in the contest entry page. The rules allow a range of sizes for the thumbnail, but the upload page insists on 300x350. Same for the Medieval Contest. Also, the upload page for each contest says the maximum image size is 1200x1200, although the rules state up to 6000 by 6000. However, I entered an image in both that was larger than 1200 in one dimension (same for both contests) and it seemed to accept them. I did adjust my thumbnails to 300x350, so I hope I'm entered in both contests.