This one was fairly quick actually, I didn't count exact hours this time but I've spent an average of 2 hours a day on it, so probably around 10-15 hours.
I am madly in love with the velour surface though. It is absolutely fantastic!!! It soaks the pastel up like a sponge, but once you block in all your colours with the pastel sticks, it's so quick to just run a few pencils over it to put the detail in. Plus it gives such a lovely soft look compared to the Mi-Teintes. I'll definitely be putting in a big order for it now and start cutting back on the other paper.