I have started attending the West Hallam Portrait Group. It has been great fun. Each session I have started a new painting and attempted to finish it in one sitting. If i run out of time during the session I spend an hour at home finishing off. They are about 3 hours painting each. The drawing has suffered a bit because of the very short window of painting time. I am also aware of a few hard edges dotted around that i really should have softened off but too late now! I will try and shift my emphasis to better (slower!) drawing at the next session.
I feel like I am improving with each one and they are an absolute blast to paint. I am also finding that they are having a positive filter down effect on my other work.
There are also a few 20-30 minute life drawings here too.