Hi Sayuui! As I mentioned in the contest, there is a 24hr grace period following the contest end-time (which ended 10/26 at 11:59PM PST). If any entries are added AFTER the grace period, it will be very easy to notice and may be disqualified depending on what happened. Furthermore, people who submit past the grace period do not have much of an incentive to do so because their entry will not be considered seriously. But there are also people who would like to enter the contest, but not necessarily be considered for the prize.
For these reasons, the contest folder will be closed only once the final judging results have been released (most likely within the next 5 to 6 days)