In the list of animal comparisons provided, here are the appropriate completions:
1. Malin comme un singe
2. Muet comme une carpe
3. Myope comme une taupe
4. Fier comme un paon
5. Gai comme un pinson
6. Bavard comme une pie
These expressions are commonly used in French to convey certain characteristics or traits associated with the animals mentioned. For example, "malin comme un singe" means "clever as a monkey," highlighting the cleverness of the person being referred to. Each comparison draws on the perceived qualities or behaviors of the specific animal to make a metaphorical statement about a person's characteristics.