A new race – the Order of Knights of Elrath.

Tibvar, you came up with a great idea, but you need to replace the angels; they already exist in Haven. You could also create another animal, for example, a Pegasus – a silver Pegasus, a divine Pegasus (Pegasus is a symbol of purity, heaven, wisdom, and divinity, and I think it would fit well here).

Added 1 minute ago
Otherwise, everything fits very well.