I recently created a palette on a cutting board. And now it is the most convenient to use for me. There, the pigments are selected to create a botanical illustration. And what genre of watercolour painting do you think I'm creating a new palette for? You can already see the pigments in full.
I spent several days studying the mixing of pigments. For training, I chose a disposable plate. I really like it when mixing paints you can make a big puddle on the palette. And I've never had such a huge palette as this. A lot of space. In which, of course, the disposable plates lost.
The aesthetics of the artist.