I just wanted to express my sincere thanks to all the contributors to this thread, especially OP, nickbuol and Soupy.
I am in the process of making around 13 acoustic panels with varying photographic artwork (not movie posters). Some will be spread around the apartment to improve the acoustic comfort of rooms with 10 feet ceilings and some will take the first reflections in my home theater basement.
I will start my first batch by making and ordering a single photo distributed on 5 panels, and another photo on a large single panel. I think I will go for the Silky Faille, actually, as I think I will have an easier time mounting it and I would like the deepest blacks. I'm so glad I read the entire thread, beacuse I am pretty sure I would have just ordered Kona without it.
I will keep you posted on the progress, and pics when they're ready!
Thanks again from Norway!
7.2 Genelec 8240A, 8040A, 8030A, XTZ 12.16
Onkyo 809, Epson TW9000, 120" TabTension