"Her author will be given a gold bar worth $ 5000"

This is certainly enough incentive to cheat...

I'd have to agree with your suspicious, Alessandro.

After checking out the photos, I watched the video for Katty Ko. While it may have been visually interesting, with moody lightning and environmental effects, that's pretty much all there was. The majority of the video didn't even focus on the character herself, which is what I thought was the whole point of the contest. There was virtually no character animation. She didn't even blink.

I'm not saying the Katty Ko entry was terrible but in all honesty, given such a disparity in presentation and quality of work, I really can't believe that she received nearly double the votes over Kaya, more than double the votes over Dalila. If there was cheating involved, it wasn't exactly subtle.

At the risk of making the situation look like a case of sour grapes, I'd certainly bring up your concerns with the organizers of the contest. They'll have access to server resources to do a proper investigation.