I am going through a houzz.com design and will be painting some large size decorative pattern. I am not talking about repetitive pattern that you roll onto the wall. However I am not sure how to do it. - Use a custom cut masking tape? Does not look like a plausible. - Next thing I have in mind is draw the pattern on the wall with light pencil and meticlously use the ultra fine brush to do. OR any other suggestion, please let me know.