1. Odd combinations of insignia.
1.(a)2 different combinations of sleeve insignia. Either would be more or less correct but not both on one uniform. The sleeve with the distinguishing patch is more believable, the colours look off but that may be just the photo.
1.(b) The CANADA title below a shoulder title bearing "Canada" or "Canadian" is technically incorrect but a fairly common practice. So is the incorrect spacing of the titles.
2. Second Lieutenant's BD is a bit rare as most were promoted fairly quickly to Lieutenant.
3. There is a number to the right of the stamped label that doesn't look like a service number. It looks more like a museum catalogue number.
Then again, I could be completely FOS....