Sketching of Angel Lady

Angel Lady is just a random sketch that I did while I was bored. The idea of her itself all originated from my mind. The background however is me being lazy and using Google images to my advantage. Usually I have a pre-sketched background but for this particular one I didn't. Anyways please do enjoy what I call a sketch because I still have no idea how to use paint tool Sai (even after years of using it). <3