I have been trying to use plaster as a medium in my paintings and have a thousand questions about aplacation methods, crackle methods, specialty applacation tool for details etc.I dont know anyone anywhere that knows anyting about venitian plaster.I found this website and hope someone can advise me. I think I have attached a picture I am working on and hope you can view it.On this painting my question is how to increase the crackle effect on the left wall....how to control the crackle effect(increase/decrease) please advise if you can