This video is long (but not tag-worthy long) and it starts out showing the traditional Ice Festival aspects, but it also shows the Disney part. This explanation from Neatorama:

The Harbin Winter Festival, one of the oldest winter festivals in China, used to be a frozen wonderland of indigenous charms: a Qing dynasty ice palace, snow dragons, the Forbidden City sculpted in snow.

But this year, a Disney licensing company is taking over operations from the local communist government. It’s the first time a private company has run the ice festival.

So instead of candles flickering in ice lanterns in front of a frozen replica of an ancient pagoda, Harbin now has Cinderella’s castle with an escalator and neon lights, and people posing for photos with ice sculptures of Mickey Mouse and Donald Duck.

Sometimes it’s a too-small world after all.