Yeah, monica. You need to stop filmmaking by committee. Especially when you're the only only filmmaker on that committee.
Everybody is a armchair critic and an armchair expert.
Personally, I don't make a habit of showing anyone outside of other filmmakers my work until it's finished. Non-filmmakers just aren't as good at seeing an unfinished product and understanding that something is going to be added to it that will make this or that work once it's done.
All very very true.
I often have to show unfinished work to clients (because they are stakeholders in the proces and they pay the bills), but I always make sure the part I show is as finished as possible. Some people just don't understand unfinished edits at all.
Move on.
Don't try to paste light from one scene to another; that will only kill time and enthousiasm AND the result will be worse than before.
Don't try to make the knife shine: it will look even faker.
(And no, the Shine-plugin is not a tool to make metal shine

)
Don't fix the shots.
Only colorgrading is allowed
Lessons learned:
- plan your lighting as much as possible and stick to the plan to keep continuity
- making a knife shine is done by letting it reflect light towards the camera. In darker scenes you can use a weak lightsource that reflects in the blade while the knife is moved. This trick is often used in the first shot with a knife; it's about letting the audience believe it's sharp even when the rest of the scene uses plastic knives.
- you can get away with a lot.
- fixing in post is NOT the holy grail. Use post only to do add or delete things from the screen you already planned to do. And to do 'things' with colors.
- don't act when you direct: you'll need to keep an eye on things as they happen.
- when you direct, tell the crew what you want to see on the screen. You tell the actors what they have to do, but also tell your DOP what needs to be seen in the shot.
What is great about this?
1) You can now focus on finishing this short instead of trying to 'fix' it.
2) Your next project will be better, because you learned a lot from this one.