Kingdom of Knuffel

Demon, demon.

I think you're an ice demon.

An angel, one who is known for their wise but sometimes strict advise

The calmness of the dove near you argues for your title being "Angel of Peace"

A devious fire demon.

You're an angel. In fact a weird one, but still an angel

I'd say a demon.

A very cute, mischievous demon

Okay you know how a lot of modern mythology has angels dressed up as normal humans walking among us, spreading kindness?
That's you right now.

You're not actually a demon but you sure look like it.