These are drawing I do while I sit at Supanova or Oz Comic con etc.
I find I'm very productive on those days- but nornally takes a day or two to get going. In 2015 I expanded to doing watercolours as I sat- but these are only A3
whereas some of the live/demonstration drawings I do are on a roll 1.5+ m high and however many metres long.
Most while I'm sitting there they are A2 or a few A2s joined together.