Once again through curiosity and boredom, I wanted to see how accurate Twilight’s Star Swirl costume is, now that we have the actual Star Swirl to make a 1-to-1 comparison.
 
Turns out, it’s not terribly accurate. Despite Luna’s insistence, she in fact did not get the bells right. They go all the way around the rim of Twilight’s hat, when they should only go about halfway.
 
The moon and stars should be uniform in color rather than differentiated, and the blues of the costume itself are much darker than they should be. Star Swirl even has a hole for his tail, which is lacking in Twilight’s.