Hi, Tony. I give you ideas to what you explain.
I guess you say, Image Small: 440x280 pixels (required)
If you have already uploaded it. Wait.
The system has to validate this image, it is normally not visible immediately and sometimes it takes a few days to be publicly visible.
If it is not accepted, a notice appears on your dashboard next to that image.
If you have problems:
Reads Brand Guidelines.
- Avoid text.
- Make sure your image works even when shrunk to half size.
- Assume the image will be on a light gray background.
- Use saturated colors if possible; they tend to work well.
- Avoid using a lot of white and light gray.
- Fill the entire region.
- Make sure the edges are well defined.
Read it well and verify that your image and standards are ok.
You will find more information here:
Hope this can help you. Good luck!