Help me name my characters?

(For a different story than my other questions)
It's set back around the mideval era, not sure of the exact century, but the first part is gonna be in some made up fantasy land, the second part in the "demonic realm"
Here's my first main character:
species- human
Gender- female
age- 16
eyes- green
hair- redhead, very deep shade of red
skin tone- pale, no ability to tan
Overall appearance- pretty, in a very cute way, adorable when she smiles
background- from a poor family, her older sister was always the favored child and this character is used to being in her sister's shadow. Her father died before she was born so it's just her mom taking care of the family, her sister has been struck with a grave illness and has barely any time left
Personality- very sweet, very generous, but demure. a bit of a tomboy, but a dreamer. Dreams of the higher classes and being one of those rich ladies
the mystical creatures tend to show themselves to her much more than normal people, so she is one of the few people aware of their existence

Second major character-
species- Demon
age- same as first character
eyes- red
hair- dirty blonde
skin tone- never seen sunlight pale
background- ruler of the demons (Don't know if his title's going to be king or emperor or lord maybe pharoh to be different?) Secretly he doesn't want to be ruler and wishes his older brother could have taken the throne, but his brother failed to prove himself
personality- Dark, brooding, mysterious, secretly not a complete demon, not truly evil, still has good in him. Unpredictable because it shows sometimes, and can be very cruel in an attempt to hide this.
Can sense when he's being lied to