Painting gouache night scenes

In this video I paint two night scenes, one of Venice and one of Hong Kong, using gouache on coloured card. It was a bit of an experiment, but I really enjoyed the process and I think the end results are good. I hope you enjoy it. Please give a thumbs up if you did and subscribe to my channel if you haven't already done so.
Materials:
A4 size black card and midnight blue card 180gsm or thicker.
Gouache paints - Zinc white, Ultramarine blue, Burnt sienna, Yellow ochre, Sap green, Primary blue, Spectrum red, Permanent yellow deep. All Winsor & Newton Designer’s gouache.
A #10 round brush with a good point.
A Conte white crayon