French street artist JR travelled to the Ukrainian city of Lviv to install one of his trademark giant portraits. It features a small, smiling Ukrainian girl, dressed for winter, captured in black and white. JR says "this little girl reminds us what Ukrainians are fighting for". Five-year-old Valeria is one of the millions of the refugees to have fled Ukraine since the Russian invasion.
We also hear from Ukrainian artist Bohdan Mucha, who's documenting the war through photography and video at home in Kyiv.
