I like the subtle use of the digit 1 in the n, great work. I think it needs something more to dress it up a little, something identifying that we are Australian, perhaps?
#32 has some good ideas, could we please see it without the red curve underneath the writing and replace it with .com.au in the same blue colour as the word costume. The 1 in the n is innovative however feedback from our team in Australia has pointed out that it may be confusing as how to spell our web address.
Could you tilt the boomerang symbol slightly more clockwise to not touch the 'o' in costume?