Orange & Poppy Seed Vegan Loaf (Pick Up Limes) would cheer anyone up. Made with real orange zest, this uses coconut oil and the icing contains powdered sugar (Suma and Wholesome! are two good vegan brands) and blood orange juice, for the pretty hue.
Blood oranges are from Spain and simply have a richer taste and deeper colour. You can use conventional oranges. They won’t taste or look the same, but the loaf will still be nice! Serve with a nice cup of tea or coffee.