She has almost all vampire pony traits except for the eye-color.
Wings being same color as the body, ears a bit too open, the eye-pupils look normal (And not a small straight line, like a dragon), etc.
Bat ponies ears are same as any pony else except for the tip of the ear. They have those dragon-like pupils. Their wings are normally dark colors or colors matching their hair and mane; and always in TWO colors.
Technically, you drew a vampire pony with purple eyes instead of normal red eyes.
Sweet Celestia, those eyes are beautiful. And rather alluring, the way they're narrow and with the feeling they seem to convey. The apparent shyness and hiding the face behind the pillow only make the effect stronger. Same goes for the mane's fringe hanging over and the trailing end lying to its side like this.
I really like the loose lines at the edges of the ears, the hair and the wings. A nice way to show fluffiness, and a very cute and non-messy sort too. And some swell work with the lighting here. Well done indeed!