Things I have learned in the last hour..
One… do not outline in paint.
Two… be patient and wait for one colour to dry before adding another colour right next to it.
Three… I have one good brush and a bunch of crappy ones.
Four… while the wide brush makes great rainbows when held sideways…
… it does not work for details and small areas.
Five… gradients are pretty (this is a cheat really cos I already knew this).
Six… my unknown-brand watercolours are less pigmented than my Reeves pan.
Seven… the cheap waterbrush I got from AliExpress leaks when you squeeze it. I need a proper one.