Black Paper Painting with School Paints:
Try painting on black paper instead of a stark white blank page.
It adds a dramatic mood your painting even before you begin painting any colours on the page. The black undertone seems to enhance the intensity of the colours.
It really does change the lighter colours. Look at the greens of the grass.
You can do the same if you are painting on a canvas by painting the background black. These days there are plenty of brands that have a Black Gesso (primer, sealer and undercoat) available in black
To help, use a paint that has strong bright bold and true colours like FAS Super Tempera. It always helps to use fine art supplies right from the start.