I don't understand why AC Milan Tux send by me was refused

other soccer team appear regularly

Have someone some ideas? here attach my creation

There's aliasing appearing on the stripes and on the feet. That's why it probably wasn't accepted by our validators. Welcome to CrystalXP.

Here are two pre-existing Milan tuxes:

Red.

Blue.

EDIT: I see you just edited the red one, merely changing the name of the company.

yes you're right! I edited the red one and update it with new sponsor's team

it's not permitted?

It is permitted, actually.

All tux on this website are under a Creative Commons license which allows anyone to redistribute and edit them, as long as it's not for commercial purposes.

That's not true. The license can differ between different Tuxes.  

It can? How? I always get the same license option when I'm uploading them...

I dont actually know about the license, but its really bad to modify a tux and then upload it as if it were your own creation

I know!! Some of the soccer tuxes (not mine) are made from my template, and it doesn't even mention that.

But on the other, even we use the G2 tux model, which isn't really our own, original creation ... So I dunno.