Hi @grace-galdamez, when posting your photos here, just make sure they are JPG and less than 8MB in size. That should help prevent upload issues! 🙂
And, Brieanna is correct, Lightroom is not required for the Secrets to Photo Editing course! The course teaches editing principles so you can apply the concepts in whatever program you use.
This sounds like a great opportunity, though, and it was fun to see your pictures in the link you provided! What lighting sources did you use for the different photos you took?