If I were to attempt this ever again in life there are a few things my amateur self would do differently.
Use filler over the entire dash and not glazing putty
Reinstall the dash after the body work to confirm dry fitment of the rest of the interior
Do a black basecoat, tape off all the vent trim pieces and reinstall them before doing any resin
Do not use the flakes without a vacuum. Matter of fact figure out a way to use regular carbon cloth but again with a vacuum. With just a wet lay up and sanding you still end up with areas that are too thick for other trim pieces to fit properly.
Later on this year I will get another dashboard but for now this will do.