Neil, your two entries have been resized to 800 pixels tall, to meet the Challenge guidelines, and reloaded so as to remove the spurious "Konica Minolta Users" account name.
TIP: You need to log out of the KM account before uploading to STF Challenges, which use a different procedure. Make sure the word "login" is visible at the top right of the screen (if not, click "logout" a second time), and then go straight to "edit this gallery".