Find a patch of snow without footprints. Gently fall backwards, perhaps to your bottom first, and then lay back. Open and close your legs, wave your arms up and down. This makes the skirt and the wings. Get up carefully and leap away from your snow angel to keep the snow un-marked around it.
Lay children's clothing over the angel to give it a nice outfit.
Give it hair with evergreen boughs.
"Paint" it with squirty bottles of dyed water.
Give it a face with the fruit.