Again, this has been rejected for technical issues

Кажется,ты переборщил с обработкой. и размер фото проверь,не менее 4мб

What's wrong?  The child's ears are bright RED!  Do the flesh tone colors look normal to you?

The picture is indeed underexposed as shown on the histogram:

You see that to the right the whites and half of the highlights are missing.

I think, however, that the focus on the eyes is as sharp as it could be, but that the overall picture quality is not sufficient as you have a white border at the trousers (too much sharpening?), the colours are washed out (noise reduction?) and you have colour noise (very pronounced on the boy's legs)!

Even that your camera was a high-end at the time the camera has been released (around 2005), you really need to shoot carefully, with enough light and correct settings, so that corrections needed are limited.

In addition, even if it sounds overkill, I would expect that you would need a model release for the boy and a property release for the artwork.

If the picture exists in raw, I would think, that you may be able to save the image.

As a side question: tech support, is that contributor support? In all cases, Adobe won't provide you more information than they did. You need to understand that they have each day thousands of pictures to check, and if for each refusal, they would need to write an extensive rejection reason, they would not finish in reasonable time limits. Contributing is not a photo school, and Adobe simply assumes that you know your "job" before contributing. The check is not done to help the contributors, but to protect the paying customers from bad and unusable pictures.

And yes, if technically correct and with all the releases, this picture would be highly welcome to the stock database.