Ooh this was fun! I paid attention during the sketch, watched the first 2 mins of the watercolouring and got so excitable I went off and splashed paint around! 
Only after I finished my “masterpiece” did I go back and watch the painting part of the course… queue going back in to try to rectify some flat parts. Note to self - watch the section of the course first before getting stuck in OR have two versions on the go - one for the course content and one for when I get carried away!