If you check the raw source page, the keywords and tags clearly list out the tf from wolf to dragon, along with possession: Labeled by the artist on the 10th page, https://www.furaffinity.net/view/58006446/ "You have no idea what would be on the last page, the finished version of this incredible dragon will turn out to be something gorgeous, I hope you like it!"
To my fellow taggers, female:dragon is not the furry type of dragon, there's no dragon girl tag, it's listed under the same as "lizard girl". Dragon means an actual dragon.