Good Luck with your comp!
I've always been too scared to enter any so well done you! I don't like rejection!
I'm sure you'll do fine.
I'd say your BoP will be fine after a week, like everyone else has said just keep them out of draughts and direct sunlight.
Wouldn't trust the celosia after a week but you never know... keep them cool.
Let us see pics!
xx