Yeah I have pictures of other gatherings with friends and family no problem.. my problem would be specifically not having a symbolic ceremony for the wedding. I don’t know if that usually makes it look sketchy
You've been in the relationship for eight years, do you also live together? Look at the application forms, since recently married I believe you will also be providing info on that and other aspects. You could probably even apply as common law (although being married makes app even more simple).
In this context, having a small ceremony with just friends will not look that sketchy. Just a short letter of explanation that eg parents did not attend because [etc].
I wouldn't worry too much, this is not that unusual for same sex relationships in Canada as well. (And not rare for heterosexual relationships either, actually, if parents disapprove ie from different religions).
The documentation of large traditional weddings and associated customs with family attending can be critical for applicants with much shorter relationships, arranged marriages, and who did not know each other before the marriage (esp from some very traditional or religious societies) or who mainly know each other online and have never lived together.
Having some of your family attend might be helpful but it will be the whole application that will matter.
In your case if you are applying from abroad, the more difficult part may be showing seriousness of your intent to move back to Canada. (Not same sex issue at all). Spend some extra time looking at how to document that.