Red is not really your color, to be honest. It comes across to warm.
And it is especially disturbing next to the girl's pink dress.
Rethink your hairstyle...it looks a bit outof place in this picture.
Yeah the size issue is a tough one, especially when the girls are wearing heals.
But hey...you're in Australia, where the asian population is quite high
If you dig them...go for it
Get a necklace, something that is hanging between your pecs, not necessarily a dog-tag, as it would look weird with your physique...
You are wearing some leather wrist band? Or is that your watch? Or both...anyways that's a good start. Find a necklace that matches with that.
I wouldn't follow the recommendations of getting an earring at all.
Your social circle does look like it would be considered ridiculous...I mean yeah your not limited to them, when it comes to girls, but still most of the time one is looking for something "adequate"