Approval of images takes time. So you should wait some time in order to get it accepted. Now while submitting the images you should be sure about the dimension of the images and if the image is clear or not. Mainly for this two reason the images are rejected. You should examine the image you are submitting very minutely so that such problems don't occur.

Now you have nothing to worry about , if you have uploaded the image correctly then it will get accepted. So focus on your NEET revision.

To know more about NEET revision tips visit the link below:

https://medicine.careers360.com/articles/revision-strategy-for-neet

To know more about the Image specifics for NEET visit the link below:

https://medicine.careers360.com/articles/neet-photo-size-format-documents

I hope this answer helps. All the very best for your future endeavors!