I have contacted Mr Wang once more, making him aware of the photo upload problem and asking him when is it likely to be resolved.
I am also having difficulties editing the site, oddly in deleting unacceptable photos which may contribute toward a resolution!
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May I bring to the attention of all who upload, the conditions shown on the upload page, one of which is the requirement that the size of images must not be less than 800 x 600.
All photos in the database which do not meet this requirement are likely to be deleted.
IMO tightly cropping around the aircraft omits the background, the inclusion of which often contributes to the interest and value of the image.
The generally accepted cropping ratio is 6 x 4 (4 x 6) to a size of 1024 x 683 or a crop ratio of 4 x 3 to a size of 1024 x 768. These sizes will result in an image size of between 500Kb and 1Mb, well within the maximum allowed.
The full size screen image would be approximately 30cm x 20cm.