Really nice how you actually bend the cutie mark instead of just squeezing it. Did you use envelope deformation? Some of the tapers in her mane are simple triangles and thus look a bit bumpy. You can use the path effect "Join type -> extrapolated" to make them curve nicely without all the mess that Powerstrokes create.
Thank you. I haven't watched any of the previous generations, so I wouldn't know. Canon names are often beaten by fanon names such as Golden Harvest vs. Carrot Top, I'll be calling her Colgate for the rest of my life, granted.