The very first picture of the post by Hanif Bhai shows the constellation of Orion - the Hunter. Though it's not complete in the picture (missing the arms), most of the constellation is quite brilliantly covered by a fantastic picture.
The green laser is sort of pointing towards the Sword of Orion (the stars in line parallel to green laser beam) which holds a great Star forming region called Orion Nebula (M42). The three stars in a diagonal row about the sword is the Belt of Orion.
More can be read on this wonderful part of sky at Wikipedia.
Thanks.