I started by sprinkling Cobalt, Violet and Vermillion Brusho colours on to heavy weight watercolour paper and spraying them with water, adding more colour, more water and tipping the paper towards the top and bottom, letting the colours run in to each other.
Once I had the look I was trying to create I left it to dry while preparing my snowy scene.
I die cut a row of houses from the same paper and used the back of the left over piece as a stencil to add glossy white soft relief paste to the bottom of the card. I also added the paste to the row of houses. I gave these a heavy sprinkling of Sprinkle-It in Irridescent Flash for sparkly snow.