Snowmen are standing tall and proud.

Meaning: This sentence is describing snowmen who are currently standing up straight and are feeling proud of themselves. It's like saying, At this moment, the snowmen are standing tall and are feeling very proud of themselves.

Choice of Words: Snowmen are figures made of snow, typically shaped like humans. Are is a verb that means to exist or to be in a particular state. Standing means to be in an upright position with your feet on the ground. Tall means to have a great height or stature. Proud means to have a feeling of deep pleasure or satisfaction. When you put them together, "Snowmen are standing tall and proud" means that the snowmen are currently in an upright position and are feeling proud of themselves.