A good way for me to keep different parts of the story separated is to give Filip a different hairstyle. As a teen, when he meets the Priest he had it rather unkept and grown out. Later after he gets his first job and starts to mingle with Patrick he explores it a bit and cuts his sides, making it look a bit more punkish and mohawk. After that he cuts it all off and as it grows back he keeps it in a messy undercut. Light blonde, in the summer gets very fair, during the winter darkens down few tones.
