It's a tough industry to get a start in at the moment, but your time will come. You don't need to spend any more money on qualifications to get a gig, your current qualifications are just fine. If you want to spend money, go get a little 210 time and stay current, otherwise, i'd say just keep being patient. There is some movement in the GA around Darwin, so hopefully it won't be too long and you'll get a look in.
To be picky, I'm not a fan of photo's on CV's. Also, if you are offered an interview, know the applicable VFR theory, know about the operator and know about the aircraft you are likely to be hired on. Good luck!