Luna hugging Twilight in the foreground is reflected in the background in position as well as color. The purple twilight between the orange and the night sky. The poppies in the field seem to reach upwards through warm clouds toward the heavy and dark sky. And the field seems to stretch all the way to the horizon before melting into the orange glow. This links the foreground and background together and creates enormous depth in the piece.
NASA. I find that it's too difficult (and time-consuming) to try and paint them by hand... They never look right (to me). Stars have a particular random quality to them... One of the sources of their beauty.
So rather than attempt to replicate that randomness, I prefer to use the real thing (in the form of a custom brush or texture). Nothing I could paint by hand would look as good... The universe is a far better than I when it comes to painting stars.