I enjoy inventing all kinds of creatures, but creating an origin for this one as a little harder than I expected.....(but hopefully it's ok)

Alya angel is an angel I created as a pesonal guardian angel.....it comes at night and tries to make your sleep as relaxing as possible, taking a part of your bad emotions you fell asleep with.....With this risk, their appearance changes bit by bit every night: the green skin is caused by removing envy and anger from you, so you will not be harmed during your rest.....The hair color might change based on the mood you had.....the wings will never change their color, as a sign of the purity of an Alya angel's intentions.....the scepter amplifies tha angel's power, if a dark emotion is too strong to be removed with simple magic.....
An Alya angel looks differently from one person to another.....(this is the way mine looks like)