Are there any doctors in Australia, specifically Melbourne, that conduct brow bone reductions?

There are only a handful of surgeons in the country who do brow bone reduction on a routine basis. I do this procedure every week. The key is finding someone who will set back the brow bone with plates and screws and not just burr down the bone which can leave that area dangerously thin. This...

It is possible to shave some of the bone at the eyebrow. The access is an incision from ear to ear.Lateral x-ray is needed to see how thick the bone and the frontal sinusSamir Shureih MD.FACS

You are absolutely correct to worry about feminization. Your brow "prominence" is completely normal. The brow reduction surgery is not as simple as just shaving down the bone. This could alter your sinuses as well. I would not recommend this procedure for you.