I sketched the composition out at work and coloured it in with pencil crayons. It looked rather nice but nothing compared to what I'm hoping the actual painting will look like. It was fun doing the sketch though. I usually just go straight to canvas/paper without sketching it out but this time I wanted to try the colours and composition out before committing it to paint. I'm glad that I did. It gave me a better idea of what I can expect from the painting and what the composition will look like on paper instead of just in my head.
I'm debating getting started on the painting despite not having a board for it. I've done a fair amount of watercolour without it being taped/stapled down and they've all turned out fine. Besides, if it gets messed up, I have 2 more sheets of paper!