I was thinking about when I saw the art event. Then I thought of Pinkie being surprised to see Tempest’s ‘horn’ and Pinkie yelling out for everypony to take a look. Originally I had a conversation script for these two, but I lost it and I can’t recall it now or think of a better version. So that’s it. Probably looks boring without the dialogue, I suppose.  
I was pretty busy these days, but I grabbed some minutes before bed time each of these days to complete it. Yeah, scrappy, I know. But I’m glad I finished it before deadline.  
Anyways, happy birthday and thanks for coming along all these years, MLP:FIM!