According to official statistic at http://www.cic.gc.ca/english/resources/reports/ee-year-end-2015.asp, there are roughly 2000 people having score >=450. So 447 would not be sufficiently competitive for now. You may consider seeking a PNP or LMIA to get the 600 extra points or you may consider re-taking IELTS to get increase the scores on language and skill-transferability.
There is rumour that later this year CIC will finish all "in-stock" applications received before the EE system (before 2015), then they will be able to handle more cases and the CRS score will likely go down below 450.