A home-made work order will be fine. Make sure it has the date, VIN, mileage and the receipts for parts used. Outline the work that was completed and by who. This is more information than I have seen on some professionally made work orders. The photo records are overkill, no shop does this and our records are valid...
As a side note: Not that it has ever previously been an issue, but the motorcycle trade is restricted in Ontario and by the letter of the regulations no one is supposed to work on bike unless they are a licensed journeyman or supervised apprentice. The rules are unenforceable in my opinion, but it doesn't stop them from writing them down. The only chance these rules might affect you is: if something catastrophic does happen, there might be grounds to deny a claim as the person completing the work wasn't "qualified" to do it.
My personal opinion is that everyone should know how to change their own oil and complete basic maintenance items, but I understand there are a variety of reasons for the rules to be in place. Some silly, some valid.