Classic was the reason I stopped making graphics or rather bodies in general. I would spend hours on them, upload, and then they would be rejected. Or an even worse example is I would have the body for several months and then it would suddenly be refunded by a staff member. If it was even a little close to copyright it would be rejected. I don't think it was the system that found something wrong with your body, but a staff member themselves. Unless that has changed over the course of time. I would give it up on the body. If you managed to upload it some other staff might just snatch it from your inventory and only refund half of what you paid for it.

There is something definitely wrong with the second picture you posted. See that little "Check Transparency" box? There's no way it would be able to set the transparency on that second image. The background is not one smooth color like the first. Go ahead and try to fill the background with the paint bucket and you'll see what I mean.

P.S. I hope you're not stealing that body and that the artist actually gave approval to upload it.