Hairstyle
Hair Style, Hairdo
noun, expression
Your hair model is how you model your hair. It's your hairstyle or hairdo.
The readings are the vocab readings of the individual kanji. For 髪 that's no problem. For 型 just remember that it's the individual vocab reading. Watch out for the rendaku.
ビートルズみたいな髪型だね。
Your hairstyle looks like the Beatles’.