Most guys look their best 10 or so days AFTER their DNP cycles. You wouldn't do a keto diet all the way up until you step out on stage, would you? Heck no! You would carb up before the show. You can carb up all you want but if you are on DNP, you won't fill out until most of the DNP has cleared your system.
If you are 7 days out, there is not a whole lot you can do as far as bodycomposition. Now here is where you have to take what you've got and work with it so it makes you look as good as possible. If you don't think you're lean enough, let it be a lesson for the next show.
My advice would be to hit the diuretics. Start a keto NOW and then begin a carb up with mostly liquids two days before the show. Watch you water intake so it doesn't get too high. Have a glass or two of wine before you step out on stage (i'm dead serious) and kick some ass.