The process of eligibility is not automated. We have to read each entry and provide feedback before it shows in the gallery and passing it on to the judges.
Yes, you can edit, add, subtract your entry as much as you want until the deadline. Please check the timeline.
Everytime you edit your entry, we will have to re-read it and reapprove it for eligibility for it to appear in the gallery. This is not automatic nor automated. Your entry will show in the gallery after it has been reviewed one, or several times.
Please be patient with the time it takes us to read and re-read each entry and for it to show in the gallery.