What is the ruling on a mobile phone cover that contains part of a woman's face (lips and teeth with a finger) or a representation of a teddy bear or a rabbit, or a picture of a cat?

Displaying the image of a woman's lips and teeth with one of her fingers on a phone cover is not permissible, due to the temptation it causes. The ruling on looking at it is linked to temptation and desire, so anything that leads to these is forbidden to look at. Some scholars have explicitly stated the prohibition of looking at images of awrah (private parts). As for three-dimensional figures of living beings, if they cast a shadow and are complete in form, then making and possessing them is forbidden. If they are not complete in form, there is a difference of opinion among scholars regarding them.