I've often wondered about blueboard. Supposed to be 1/8" plaster and lime putty, then another 1/8" lime putty/fine sand. Is this enough to suck pigment, or are you putting much thicker layers on?I will be sending you a documentary on a large true fresco mural at the Westminster Abbey here, Father Dunstan - a benedictine monk and remarkable man. You can approach the documentary maker about distribution, etc.
I am planning a major 'breakway' fresco with a U.S. fine artist of considerable talent. I am getting a metal frame engineered and welded - appr 16.5 ft by 20 ft. - hydraulically lifts from horizontal to vertical - portable too. This has been in the planning for some time - matter of where rather than when. It will also include 3d modelled elements in (lime based) stucco.
L.A. would be nice right now - Vancouver has had a rare snow and then cold snap - open the freezer door on your refrigerator to see a diorama of Vancouver!