Who does the red dress represent?

Hi friends! Ordered this shirt off Amazon because I needed a princess shirt for my trip to WDW this week. I didn’t notice this mystery princess on the far right. Any idea who she is supposed to be?!

Hi friends! Ordered this shirt off Amazon because I needed a princess shirt for my trip to WDW this week. I didn’t notice this mystery princess on the far right. Any idea who she is supposed to be?!