Indeed, that is Twilight Sparkle right here. Looks rather young as compared to the present time, as the books wouldn't be big enough to sever as a blanket for her nowadays, unless they're really large like that one book she would've crushed Spike with in the S3 openers were he not so darn tough. Lovely work with her mane and tail, and that expression is just too adorable. Filly Twi (she seems this way here to me, at least) is the very highest point of adorableness. Thank you for bringing this to us, maker.