Swarm [swawrm] – noun
It’s not quite a swarm, but I’m sure you get the idea.
I came across the painted background which I did last year, for a painting I wanted to do of a tree silhouette against the sunset. It was a particular tree I drove past most days. I actually didn’t get round to completing it, but since I re-found the watercolour background, I thought a little ink would look nice over it.