Very nice first attempt Ivica. My favorite spots for taking nightscapes in Victoria are the alps (Mt Buffalo, Falls Creek, etc.) and out west, in and around the Grampians and Little Desert. Other places I have not done, but I want too, include along the Great Ocean Rd and Wilsons Prom. Cape Shank, Phillip Island and Flinders are not too far from Melbourne with nice scenery and no light pollution to the south. Very popular if an aurora is forecast. But of course that is if you are after some nice foreground locations. If you are just interested in taking images of the night sky then basically anywhere where you can get away from light pollution is good. Here is a light pollution map for Victoria:
http://www.iceinspace.com.au/forum/a...se.php?a=17342 Black to grey is best.