Feedback is what students I think live for- and it is especially good if, like in Canvas, you can record your feedback - it woill make it less sterile and more personal.
I like the self assement - I have used this in class before a student was handing in a project- to give some time after creating his/her video and see how they could imporve- also, have another set of eyes look at it, another student and get their observations!
