I love your take on Gabriel. Growing up as a Christian, I only ever thought of Gabriel as a simple angel messenger and not considerably a prince among the Heavens. But giving Gabriel a detailed personality and character? That makes me way more interested. I also love that he loves children but he hates being mistaken as a babysitter. I find that funny. 

(Also, I'm favoriting your novel so I can read it later. I haven't read it yet.)