That's good ;)
Added 18 minutes later
You could base it on vampires. The animations are quite suitable (it bends over and opens its mouth when attacking, which works well). The only thing is that the legs are straight, but that's a minor detail. Is it not already in use?
By the way, can the eagles and their upgrades be moved down a bit? The phoenixes had a long tail that hung down to the ground, so they were positioned quite high, but the eagles' tail isn't as long, and it looks strange that they are so high up.
And here's another thing: the name and description of the building where the birds are recruited haven't been changed, and it would also be nice to replace the effects of the building, and the week in which they breed has also remained unchanged, right? :D