Add two drawing guidelines inside of the circle. This denotes the positioning of the eyes on the face, to be added in the next step.
Around the face, draw in the lines for the hair as shown, assuming you want long hair for your character. By all means make it shorter if preferred. At the base of the rectangular body form, pencil in the top of the character’s legs, using half squares.
Add jagged bangs for the hair sitting over the face. Add small nose and mouth features. Draw in fingers as shown. Begin shaping the rectangle into a dress hugging the character’s figure.
Draw the nimbus over the head. Refine the wings by drawing in feather tips and rounding the overall wing shape as shown. This part might take a bit of time and erasing and trying again; take it slowly until the desired wing form emerges. Shape the eyes slightly. Continue shaping the dress and include the crossover ribbons at the chest level.
For the wings, focus on shading in a jagged manner, to try to keep the idea of feathering and lightness. It’s also a good idea to match the wing color with the nimbus color, to carry through the idea of radiance and an aura.