Ohhh exciting! hope she gets it right.
About the drawing- you can try to draw shapes, like a two circles for the eyes and then make them look more like Sinera's eyes, search for shapes in the face you can also look on the internet for photos of women who look like her and use them as sort of a guideline... there are excellent guides for drawing on deviantart, if you'd like I can send you some I really like (they're for drawing a photo actually but I'm sure you could find some for drawing from imagination...). Do tell about your past life reading when you get it! Just don't get dissapointed if she doesn't tell you about Sinera, because it's also possible she will tell you about someone else if you didn't tell her about her...