Dear teacher,
I think you should be more lenient in your grading and considerations. Considering that I put in my time and effort of over 7 hours to ensure I do my best in this task. I really think I deserve better grading if just the attachment of pictures is the reason for grade reduction.

You are wondering why the students aren’t really responding to the homework, it’s because it’s too cumbersome, hence when a student’s genuinely puts in efforts into doing the tasks which you can see from reading through it, they should be encouraged through the grading so that they can do more instead of getting discouraged through poor grading after hours of work.