Okay, so my school is doing Beauty and the Beast and my director wants a scrim wall that will be transparent when we light it from the inside. However, the only scrim we have has already been painted. Plus, we need to put a relatively detailed (or at least enough to tell what it is) castle wall pattern on it. I know airbrushing is best on scrim, but I've never done it before. Any tips on how to make this look like a castle wall, but still be scrim-like? Much appreciated.