Well, that smudge at the lower left is the Andromeda Galaxy with which we'll be merging in about 2 billion years or so. You can see the galaxy with your naked eye under the right conditions, and you can boast that you're sble to see 2.1 million light-years away.
The "Northern Coalsack" is at the middle of the image, about a quarter from the right edge, and marks the start of the very dense gas and dust clouds the are in the plane of the galaxy, shielding the brighter center portions from our view (since we are in the galactic suburbs), about 2/3 of the way out from the center).
So the right side shows the stars of the constellation of Cygnus, the Swan, and the left side shows some of the stars of Cassiopeia, the Queen. Between the two you have Cepheus (the King, upper part of the image), and Lacerta (the Lizard) along the center. Pegasis is at the bottom of the image.
The pinkish glow just to the left of the Coalsack is the North America Nebula. There are lots more objects that I can see, but I'd need a higher resolution image to identify them properly.