Night Sky over the Cuan shed

This winter just finished down here in Australia,I decided to get into some astro photography one evening a week after work with a friend.We were fortunate to be granted permission onto a huge property which originally carried sheep.This photo shows the old original shearing shed under the Milky Way.It was taken on a Canon EOS60D at F4 for 30 secs at 10mm,with a Sigma 10-20 lens.Perhaps I have warmed it up temperature wise in post production?but I like the end result.This past few months has been a learning curve so interested to hear your opinions,
Regards from Dave