If it helps, what you did was exactly what I did with mine - sometimes aesthetics are fine just on their own! What I would suggest is finding a piece of music and arranging your colour sections based on where they feel right according to the music. Instrumental is great for this!

But if it helps, I always vid music-first and I also did that with this Vexercise and it helped me visualise the light/colour and what worked flow-wise.