Updated version: https://derpibooru.org/images/2391686#comments  

 
It’s the final entry for Equestria Daily’s Artist Training Grounds! The prompt was: “Draw a pony celebration.”
 
The best part of celebrations is cake! I decided to twist the prompt a bit and draw Pinkie Pie helping prepare a cake for the celebration since I think she’d enjoy the preparation as much as the party itself.
 
 
Originally I drew Pinkie Pie into a stock photo I found of someone decorating a cake, but given how small she was I decided to put in some more effort so I redrew the rest of the scene as well with some very heavy referencing.
 
Resources used:  
Stock photo of cake + chef by Gustavo Fring  
Hand reference by SenshiStock