This is perfect.
No worries on the photo not being the greatest. It shows that you’ve used your filter and you know what it does. So that’s the baseline criteria for the assignment and it’s really the whole point.
Just getting someone to use a filter and seeing the difference with and without is really the point.
There isn’t much to critique here and you know that this isn’t your strongest photo. When you get a chance take this filter out with you next time and put it to work.
I will see you on the next assignment!