Love the gothic old-style melodramatic cover on this book, is the first thought that came to me, haha...
In a vampire-werewolf romance story, very appropriate.
Maybe a little less dark on the title font? A bit more silver-ish perhaps.
The grammar is excellent, and that's not a small thing.
The main character's voice is interesting, but as romance leads I like MC personalities to be immediately distinct. Though there's only four chapters, and most of it is still situational data, so I expect something more interesting to crop up in the near future.
Star-crossed lovers, political intrigue, enemies to lovers, and supernatural powers - all ingredients of an interesting story!
Good start! Keep on writing, author!