there are a few girls who have done anastasia here
for the crown, a few suggestions ranging from easy to not. 1: look at pagent crowns. Simple easy and you're done. 2: make a frame out of coat hangers/heavy wire and buy sparkly beads, and wire/string them on in rows. 3: do similar to 2, but use a soldering iron and solder on strips of the rhinestone trim in the metal casings. Make sure if using a frame, you have atleast 1 support in the center or near so it doesn't collapse in the front.
if you have any questions on what I've suggested, don't hesitate to ask