I have had a major breakthrough!!!

This amazing code is by Mike Blow, who is super lovely and incredibly helpful. The code is amazingly clear and really easy to manipulate. It runs in two versions - 'Angels' and 'Dots'. I'll be using the 'Dots' version for my work.

From the top here you can see my exploration of the code, playing with swarm size, velocity, canvas size and the size of the 'boids' (the dots). I can now start working on my final image - hoorah!!