Vectors are always a wonderful and welcoming art-form when it comes to the Fandom of My Little Pony. Although it may vary. Some vectors are good, while others aren't so much. This one, however, is not only very well done all on its own but incredibly creative and impressive on a personal level of the fandom and show.
It's rather heartwarming to see old props re-enter the far art ever now and then. Like this little costume that Twilight Sparkle Originally wore in Luna Eclipsed now being used by Rainbow Dash in a very cute, humorous, and attractive manner. In a lot of ways, it's a really groundbreaking photo with a lot of mixed positive feelings!
Not only that, but it's also very awesome to see how the characters have grown and evolved since the last time that costume was introduced. Like how Twilight Sparkle is a princess now!
The vision is perfect, I'd call this photo very original with how fresh and groundbreaking the idea actually is, and the impact is rock solid! Perfect work! I'm looking forward to many many more awesome works!