One of my young friends at church wore an adorable hairstyle similar to this some time ago. It really struck my eye. Gorgeous! She had two regular french braids with a part down the middle, and the tails wrapped up like in this one. It inspired me to try this on Belle with a little improvement in the braiding technique to lose the part. This is done with french braids down both sides of the head, but rather than adding horizontal rectangles of hair to each plait, you add tall triangles with the top point at the same place each time. The top front does have a part, at the side or middle, so you braid like normal at the beginning, but once you reach the crown of the head, you start adding triangles rather than rectangles. The braids come close together at the back of the head. Braid out the tails as far as you can and then add a clear elastic to each.
Next you need to wrap the braids together, almost tying them in a knot. This diagram helps show the path that each braid takes. If a braid doesn't turn sharp enough on the side, you can can try folding it and turning it backside out like I did on the right here.
If Belle's hair were just a little bit longer, the elastic would've been easier to hide. At least it is clear.
Tuck the ends in to hide them, and add bobby pins. Belle wanted these You-Pins (from Lilla Rose) to decorate. You could use little flowers or ribbons or leave it without extras.