What are the differences between a square chest and a round chest in terms of shape, size, and overall appearance?

A square chest has more defined angles and straight lines, while a round chest is more curved and lacks sharp corners. In terms of size, a square chest may appear broader and more boxy, while a round chest tends to be softer and more compact. Overall, a square chest gives a more structured and angular appearance, while a round chest appears more gentle and curved.