Hi,
I think we can extend the deadline, but you still have only 20 days to rate 10 thousand images and you might need several rounds more.
You may need to change the instructions to reviewers. Please ask to select no more than say 50 images in the current round.
Because in round 1 you have already reviewed about 30 thousand images, but each of the nine reviewers selected from 299 to 1225 images totaling 10416 images to review again in round 2. And the reviewer that started the selection already selected 114 images and rejected 221 out if his portion of 1157 images. This gives you too many images after each round.
In Ukraine on the zero round each reviewer selected about 400 images.
In the first round each juror was given instruction to select up to 50 images from about 700 in their portion which totaled to about 400 images for the second round.
In second round every juror was selecting top10 from the common pool so total number of images selected for 3rd round is 70, which is easy to rate.
Please set deadlines for you rounds. We used one week, so you can set August 2 as the deadline of the current round, so you can have two more rounds in next two weeks (or you can finish faster as the number of images will be much less).
Maybe you also need help with volunteers to review the images? I see in the last two days only 1 of 9 reviewers was reviewing. So if someone is tired or demotivated you may need to ask to replace him/her