Y'know, this raises a question in my mind. We never saw the batguard ponies before Luna Eclipsed. Were they banished too? That would explain why they don't understand about formalities- Oh wait, YOUR ART ISN'T CANON, I KEEP FORGETTING THIS.
haha, I love this because it's both funny and gives an explanation about why Celestia didn't (or I guess in this case did) warn Luna before without her sounding like Trollestia. Thank you so much!
And yes, the guard's ears are very cute. It reminds me of the way my one dog has this naturally crimped hair that falls off of her ears, everyone always loves to play with it. I pretty much love the night guard designs in general, though!