Most Halloween yard prints die before they start. First layer too high, bed dirty, no brim on a 400 mm tombstone. Then people blame the STL.

If you print outdoor props on a Bambu or Prusa: wash the bed with dish soap, not IPA. Add a brim. Print a 20-minute test piece at 0.2 mm / 15% infill before you lock in a 2-day job.

That test piece is the whole game. The big file is just the same settings, longer.