I'm always impressed with the kinds of minigames people can make in Twine, this is really cool! And the Dragoness scenes were great, I especially liked how you had multiple shots of your view traveling up her body, really gave her that sense of scale.
I'd love to see more of this, maybe with some art for the Harpy and Mermaid, or maybe some storylines with the Fairy, Bunny Girl and/or Cow Girl that you can see in town.
And in case you were worried, given that you're not a native English speaker, I'd say the writing in the game came out just fine.