Awww, she'll get used to it eventually! Perhaps TOO used to it, even. Nice going with the coloration, I love flat pastels a lot and they work wonders for ponies. Coco's face is especially adorable, though I like how good Rarity's is at working with her dialogue's tone.
And yeah, at the end of the day they both simply need to smash more things, more actively!
Awww, she'll get used to it eventually! Perhaps TOO used to it, even. Nice going with the coloration