Amber Sketch 1 (Patreon)

"Amber becoming big enough to pop her belt(s) off." won the poll..

Both "Amber struggling to fit her rear into her shorts." and "Amber discovering her chest and arms are too fat for her to draw her bow." took second place. 

As you can see I chose to go with the shorts option, because it'd better lead into the second pic which will be the belt snapping.