How to use "paint" in a sentence

His gloomy paintings of murder scenes were part of his vision as an artist: he liked to paint the dark, squalid side of life

The car is big and old, but it is a classic, and it moves along the road like a shark, the evening sun reflecting off the red paint.

But in the reflection of the red paint he sees the cop raise his hand, and in the soft evening light he sees the knife, and for a moment he does not understand.