I will put this to one side for a short while whilst I start the second large canvas. The challenges of large paintings are so different to that of much smaller ones. The concept of scale gives a lot of possibilities, and small marks can be overwhelmed in a big painting. Conversely, keeping the overall image simple is incredibly important. I can understand now why large scale artists use very long paint brushes....the ability to see and immediately control what is going on without having to stop and stand back is pretty handy.