Your physical state has such an obvious visual symbol of this baby bump.

你的身体状态有一个如此明显的视觉符号，这个婴儿的肚子。

An " image" is a picture or a visual symbol of something.

“图像”是某物的图片或视觉符号。

Whenever a character climbs a flight of stairs, it's a visual symbol of the rise in the social class, while the walk down suggests the opposite.

当一个角色爬上一段楼梯，就在视觉上象征着社会地位的上升，从楼梯上走下来也就象征着地位的下降。