hi you are welcome here! Congrats in advance to your upcoming Wedding!
About your questions, may i ask first how you will process your papers? Is it inside Canada or outside Canada? Most of us here are outside Canada through Canadian Embassy, Manila.
For your question no. 1 - In your application papers there is a questionaire of spouse in which you will indicate there about what happened to your engagement, where you went for a trip or honeymoon, and your wedding, etc...then it's noted there to provide pictures. For us with my husband, we just developed all the important ones, its cheap naman 6 pesos per copy. I think we have sent a total of 25 pictures. We did not put captions nor paste it in a bond paper cause it's not indicated in the guideline and the pics itself describe it. In my opinion, printing it in a bond paper will not really show that that is a formal evidence. It doesn't matter how you will arrange it, my husband arranged it by following the appendix A checklist. We even include there our wedding invitation, cards, wedding program, and cards from our sponsors.
*Friendly reminder for you- be sure to read the guidelines while filling up the forms.
For your no. 2 question - Are you coming back here in Philippines? well, everything should be consistent in your docs. Always follow your name in your passport, kaya for sure maiden name mo pa gagamitin mo sa lahat ng forms at sa NBI mo... it's up to you if you want to use your husband's family name naman pero matatagalan ka... kaya gamitin mo nalang maiden name mo sa lahat... wala naman kaso un.
Hope this helps!
God Bless your Application!