I checked your gallery. your last upload was named 'Turbulence ' ? the pic was rejected because the upload didn't seem to have worked, the image doesn't showed anything.
I don't know why but it seem to happen a lot larely....
Yes. I've that problem sometimes when I receive an ImageMod's job: I can't see the picture, then I send a PM to the author and must reject it...
Hmmm... You've to verify the size of your picture (< 500 KB) and try again. You can choose to upload when a Mod is present and PM him to look if it works well... Just a suggestion :-)
About once in twenty uploads, I get a blank image. The computer monsters eat them once in a while. Think of it as a sacrifice to appease Qunjo-Mumbo, god of glitches.