How to write a sentence describing a dog's ear?

The sentences described in this section are as follows:

1, the dog's ears are like two delicate leaves, often hanging on both sides of the head, and occasionally standing up to listen to the surrounding movements.

2. The dog's ears are very thin, revealing a docile and intelligent feeling.

3. The dog's ears are like two fans, which flap rhythmically with breathing, and sometimes shake slightly, as if thinking about a problem.