No..it is not the actual Hirano Aya that we know, but rather a look alike. TMA productions (if you are familiar…they are the ones who did the Fate/Stay Night, Lucky  Star, Haruhi cosplay hentai).

They decided to make one based on Hirano Aya. -.-”’ Titled 平○綾の憂鬱 / The Melancholy of Aya Hi—no. I am not sure about legal issues here but definitely it is a personal insult to our star, Hirano Aya. The look alike looks “ugh” to me.

The picture of the look alike, after this break.

Source: Sankaku Complex

ugh?