opinions/criticism wanted
are you going to use the cellophane on the door? if so i don't think it wil hold up very well. you could take the fish cut out that you did and have a piece of red colored plexaglass cut out and mount it to the inside of the door panel so the light could shine through. this would be alot more sturdy. the only other thing would be to see just how big of a piece you need, and then get a rear brake light from a truck or van ( thinking ford ) and mount it. it would be more reflective that way as well.