The pretty terrible Elsa imitation was posted to Reddit on Tuesday with the caption: "The cake that was ordered and the cake that arrived."
The perfect princess cake on the left-hand side was made by a professional baker and blogger.
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The so-called scary Elsa on the right was made by a volunteer for Icing Smiles - a charity that makes birthday cakes for very sick children.
After the photo went viral, volunteer Lisa Randolph-Gant addressed the story, saying she had just lost her grandmother and had spent the day comforting her mother.
She says that left her only two hours to make a cake that normally takes 20 hours.
Randolph-Gant went on to say she knows it wasn't her best work, but she wasn't about to let a sick baby down.