Another sincere fan here. My thoughts are if your fish finished half as nicely as your horse (avatar) then you have no worries whatsoever! Now I'm trying to remember if I saw your fish collage posted on here or not?
Having said that, I think we all (regardless of our skill level) feel exposed when presenting our work which will naturally be judged by others. But I agree with your thought that it's art that we should be proud of - period.
I have an idea! How about a QB arranged collage challenge where you practice presenting to us?? I would pay for that online class
Best of luck with your classes!
Christine